People walk along a huge flowerbed, left, during the flower festival in Red Square near the main Moscow's department store GUM in Moscow, Russia, Sunday, July 5, 2015. (Photo by Alexander Zemlianichenko/AP Photo)

People rest in front of a huge flowerbed during the flower festival in Red Square near the main Moscow's department store GUM in Moscow, Russia, Sunday, July 5, 2015. (Photo by Alexander Zemlianichenko/AP Photo)

A man cools off under a shower, in Marseille, southern France, Sunday July 5, 2015. A mass of hot air moving north from Africa is bringing unusually hot weather to Western Europe, with France in recent days experiencing temperatures around 34 degrees Celsius (93 Fahrenheit). (Photo by Claude Paris/AP Photo)

An Afghan man prays in a public park during the Muslim holy month of Ramadan, in Kabul, Afghanistan, Sunday, July 5, 2015. Muslims throughout the world are marking Ramadan, the holiest month in the Islamic calendar when devotees fast from dawn till dusk. (Photo by Massoud Hossaini/AP Photo)

Spectators watch Fourth of July fireworks from the Stratosphere hotel and casino, Saturday, July 4, 2015, in Las Vegas. (Photo by John Locher/AP Photo)

People watch Fourth of July fireworks from the Stratosphere hotel and casino Saturday, July 4, 2015, in Las Vegas. (Photo by John Locher/AP Photo)

Partial results of the referendum are projected on the wall of the National Museum of Contemporary Art in Athens, Sunday, July 5, 2015. Greece faced an uncharted future as its interior ministry predicted Sunday that more than 60 percent of voters in a hastily called referendum had rejected creditors' demands for more austerity in exchange for rescue loans. (Photo by Petros Karadjias/AP Photo)

In this July 4, 2015 picture American violinist and dancer Lindsey Stirling performs during her concert in Papp Laszlo Sports Arena in Budapest . (Photo by Bea Kallos/MTI via AP Photo)

Su-27 jets of aerobatics team Russkiye Vityasy, or Russian Knights perform during an air show at the International Maritime Defence show in St.Petersburg, Russia, Sunday, July 5, 2015. (Photo by Dmitry Lovetsky/AP Photo)

Paratroopers jump from a helicopter during an air show at the International Maritime Defence show in St.Petersburg, Russia, Sunday, July 5, 2015. (Photo by Dmitry Lovetsky/AP Photo)

A MiG-29 of the Strizhi (Swifts) performs during an air show at the International Maritime Defence show in St.Petersburg, Russia, Sunday, July 5, 2015. (Photo by Dmitry Lovetsky/AP Photo)

From left to right, England's Alex Scott, Jill Scott, Lianne Sanderson and goalkeeper Carly Telford celebrate after defeating Germany in FIFA Women's World Cup soccer third-place match in Edmonton, Alberta, Canada on Saturday, July 4, 2015. (Photo by Jeff McIntosh/The Canadian Press via AP Photo)

Germany players react to a 1-0 loss to England in the FIFA Women's World Cup third-place soccer match in Edmonton, Alberta, Canada, on Saturday, July 4, 2015. (Photo by Jeff McIntosh/The Canadian Press via AP Photo)

Toro Rosso driver Carlos Sainz of Spain jumps out off his car during the British Formula One Grand Prix at Silverstone circuit, Silverstone, England, Sunday, July 5, 2015. (Photo by Frank Augstein/AP Photo)

Street artist Wild Drawing paints a mural titled “No land for the poor” in central Athens, Sunday, July 5, 2015. Greeks were voting Sunday in a bailout referendum that will decide the country's future, with opinion polls showing people evenly split on whether to accept creditors' proposals for more austerity in exchange for rescue loans or defiantly reject the deal. (Photo by Petros Giannakouris/AP Photo)

The capital city of La Paz is seen after a snow storm, in this general view taken from El Alto, Bolivia July 4, 2015. When Pope Francis visits Bolivia next week, he will discover a nation that cherishes animal sacrifices and pagan worship and where relations between indigenous communities and the Roman Catholic Church have been strained. The country's first indigenous president, Evo Morales, has frequently clashed with the church. (Photo by Maite Mercado/Reuters)

Chilean fans celebrate their team defeating Argentina to win the Copa America 2015 final soccer match at the National Stadium in Santiago, Chile, July 4, 2015. (Photo by Carlos Garcia Rawlins/Reuters)

Chile soccer fans celebrate their team's victory after the final Copa America soccer match against Argentina in Santiago, Chile, Saturday, July 4, 2015. Chile became Copa America champions for the first time after it defeated Argentina in a penalty shootout. (Photo by Victor Ruiz/AP Photo)

Faroh dances during an Independence Day celebration at Grand Park in Los Angeles, California July 4, 2015. (Photo by Jonathan Alcorn/Reuters)

Fireworks explode to celebrate the Fourth of July over the lake at Eagle Nest, New Mexico July 4, 2015. Americans marched in star-spangled parades, ran relay races, gathered for fireworks shows and crowned a new world hot dog eating champion as they celebrated Independence Day in traditional style on Saturday. (Photo by Brian Snyder/Reuters)

A waitress shows customers fluctuating drink prices on a tablet computer at the Reserve Bar Stock Exchange in the City of London, Britain July 3, 2015. There is no shortage of liquidity at London's first stock exchange-themed bar, where beer prices fluctuate with demand and the occasional market crash can send prices tumbling. With its sterile white walls, piercing ceiling lights and flatscreen TVs flashing green and red, Reserve Bar Stock Exchange in the “Square Mile” financial district has the feel of a trading room. (Photo by Peter Nicholls/Reuters)

A screen showing the prices of drinks, which fluctuate similar to stock prices, is seen at the Reserve Bar Stock Exchange in the City of London, Britain July 3, 2015. (Photo by Peter Nicholls/Reuters)

Exiled Tibetan spiritual leader, the Dalai Lama, speaks to followers during a mass prayer session for Typhoon Morakot victims in Kaohsiung, southern Taiwan, in this September 1, 2009 file photo. The Dalai Lama will turn 80 on July 6. (Photo by Nicky Loh/Reuters)

Pope Francis boards a plane for his pastoral trip, at Fiumicino airport in Rome, Italy, July 5, 2015. Pope Francis leaves for the trip to the continent of his birth, visiting Ecuador, Bolivia and Paraguay. The July 6-13 visit will include a visit to one of Latin America's most violent prisons when he will enter the notorious Palmasola prison in Santa Cruz, Bolivia, on July 10, his last day in the country. (Photo by Max Rossi/Reuters)

Bolivian journalist Priscilla Quiroga takes a selfie with Pope Francis aboard the papal airplane on its way to Quito, Ecuador, July 5, 2015. The Pontiff is visiting Ecuador, Bolivia and Paraguay during his Apostolic trip from July 5 to July 12. (Photo by Gregorio Borgia/AP Photo)

A woman reads a book in the village of Meyisti, on the Island of Kastellorizo, which is the most easterly of the islands in Greece, July 5, 2015. It was on this island, that former Prime Minister George Papandreou announced in 2010 that Greece required a rescue package. Greece voted on Sunday on whether to accept more austerity in exchange for international aid, in a high-stakes referendum likely to determine whether it leaves the euro-currency area after seven years of economic pain. (Photo by Cathal McNaughton/Reuters)

Russian opposition leader Mikhail Kasyanov, is pictured in a viewfinder, as he addresses the audience during RPR-Parnas (Republican Party of Russia- People's Freedom Party) party congress in Moscow, July 5, 2015. (Photo by Sergei Karpukhin/Reuters)

Rescue workers search at the site after a shoe factory building collapsed in Wenling, Zhejiang province, July 4, 2015. The accident killed at least 11 people and injuried 33, according to local media. (Photo by Reuters/Stringer)

Rescue workers remove debris at the site after a shoe factory building collapsed in Wenling, Zhejiang province, July 4, 2015. (Photo by Reuters/Stringer)

Rescue workers carry out an injured man after a shoe factory building collapsed in Wenling, Zhejiang province, July 4, 2015. (Photo by Reuters/Stringer)

Somali soldiers and explosion experts assess the wreckage of a car, which belonged to an intelligence security officer, after it was destroyed in a blast in the Hamar Weyne district of Somalia's capital Mogadishu July 5, 2015. The officer and a policeman were injured in the explosion, according to a government official at the scene. (Photo by Feisal Omar/Reuters)

Explosion experts assess the wreckage of a car, which belonged to an intelligence security officer, after it was destroyed in a blast in the Hamar Weyne district of Somalia's capital Mogadishu July 5, 2015. (Photo by Feisal Omar/Reuters)

Visitors watch as water gushes from a section of the Xiaolangdi Reservoir on the Yellow River, in Luoyang, Henan province, China, July 4, 2015. (Photo by Reuters/Stringer)

Visitors watch as water gushes from a section of the Xiaolangdi Reservoir on the Yellow River, in Luoyang, Henan province, China, July 4, 2015. (Photo by Reuters/Stringer)

Formula One, British Grand Prix 2015 – Silverstone, England on July 5, 2015: Skier Lindsey Vonn kisses Mercedes' Lewis Hamilton before the race. (Photo by Phil Noble/Reuters)

Boys practice “Malkhamb” (traditional Indian gymnastics) during a rehearsal for the upcoming annual Rath Yatra, or chariot procession, in Ahmedabad, India, July 5, 2015. Hindu devotee perform various stunts including Malkhamb as part of the annual Rath Yatra celebrations which commemorates a journey by Hindu god Jagannath, his brother Balabhadra and sister Subhadra, in specially made chariots. The annual Rath Yatra is celebrated on July 18. (Photo by Amit Dave/Reuters)

An instructor helps boys to balance as they practice “Malkhamb” (traditional Indian gymnastics) during a rehearsal for the upcoming annual Rath Yatra, or chariot procession, in Ahmedabad, India, July 5, 2015. (Photo by Amit Dave/Reuters)

A man wearing a Tour de France best climber's jersey practises flyboarding before the start of the 166-km (103.15 miles) second stage of the 102nd Tour de France cycling race from Utrecht to Zeeland July 5, 2015. (Photo by Stefano Rellandini/Reuters)

A reveller takes part in the annual Christopher Street Day gay parade (CSD) with a huge home-made coat-hanger costume in front of the Cologne cathedral, western Germany, July 5, 2015. (Photo by Fabrizio Bensch/Reuters)

Demonstrators set fire to a Chinese flag during a protest against China near the Chinese Consulate in Istanbul, Turkey, July 5, 2015. China warned its citizens travelling in Turkey to be careful of anti-Beijing protests, warning them that some Chinese tourists have recently been “attacked and disturbed”. The notice, posted on the Ministry of Foreign Affairs website on Sunday, said that there have recently been “multiple” demonstrations in Turkey targeting the Chinese government. The notice gave no details regarding the protests, but comes after Turkey's government expressed concern about reports that Muslim Uighur people in China's far western region of Xinjiang had been banned from worship and fasting during the holy month of Ramadan. (Photo by Osman Orsal/Reuters)

Demonstrators set fire to a Chinese flag during a protest against China near the Chinese Consulate in Istanbul, Turkey July 5, 2015. (Photo by Osman Orsal/Reuters)

People cool down in the lake of Svityaz during a hot day near the village of Valevka, southwest of Minsk, July 5, 2015. The temperature rose to 32 degrees Celsius (89.6 degrees Fahrenheit) in Belarus on Sunday, according to local media. (Photo by Vasily Fedosenko/Reuters)

A Muslim man prepares plates of food for an Iftar (breaking of fast) meal inside a mosque during the holy month of Ramadan in Ahmedabad, India, July 5, 2015. (Photo by Amit Dave/Reuters)

Firefighters tackle a wildfire near the town of La Ronge, Saskatchewan July 4, 2015 in a picture provided by the Saskatchewan Ministry of Government Relations. The Western Canadian province of Saskatchewan said on Sunday it was evacuating an additional 8,000 people from the far north of the province, as wildfires continue to spread and threaten homes. The provincial government said that as of Saturday there were 114 active fires in the province. More than 5,000 residents have already been moved out of the area in the past week. (Photo by Reuters/Saskatchewan Ministry of Government Relations)

A Coastal Fire Centre crew leader views the Boulder Creek fire, about 250 hectares (618 acres) near Pemberton, British Columbia July 3, 2015. (Photo by Reuters/BC Wildfire Service)

Firefighters tackle a wildfire near the town of La Ronge, Saskatchewan July 4, 2015 in a picture provided by the Saskatchewan Ministry of Government Relations. (Photo by Reuters/Saskatchewan Ministry of Government Relations)

Security officials and rescue workers check the site of a bomb blast in Quetta, Pakistan, July 5, 2015. According to local media, a bomb planted in a parked motorcycle exploded, killing one person and injuring 15, including three women and two children at Bacha Khan Chowk in Quetta on Sunday. (Photo by Naseer Ahmed/Reuters)

A man taking a photo with a stuffed bull in Pamplona, northern Spain, July 5, 2015. The annual week-long San Fermin festival starts July 6, with the first bull run taking place the morning of July 7. (Photo by Eloy Alonso/Reuters)

A man sits next to a stuffed bull used for pictures for tourists in Pamplona, northern Spain, July 5, 2015. (Photo by Eloy Alonso/Reuters)

A Houthi follower holds up a rifle as he shouts slogans during a demonstration against the United Nations in Sanaa, Yemen, July 5, 2015. Hundreds of supporters of the Iran-backed Houthi rebels took to the streets of the Yemeni capital on Sunday to protest against the United Nations and its alleged support of Yemen's exiled President Abd-Rabbu Mansour Hadi. (Photo by Mohamed al-Sayaghi/Reuters)

Houthi followers hold mock missiles and their rifles as they shout slogans during a demonstration against the United Nations in Sanaa, Yemen, July 5, 2015. (Photo by Mohamed al-Sayaghi/Reuters)

A Salvation Army member from the Democratic Republic of Congo dances as she joins thousands of members of The Salvation Army from around the world, during a march down The Mall in London, Britain, July 5, 2015. The “March of Witness” marks the end of a week long event in London called Boundless, which included the official 150 year anniversary celebrations (July 2) since the church and charity was founded. (Photo by Peter Nicholls/Reuters)

Tunisian soldiers and police patrol the area of Mount Salloum near Algeria's border in Kasserine, Tunisia July 4, 2015. Tunisian President Beji Caid Essebsi declared a state of emergency on Saturday, saying the Islamist militant attack on a beach hotel that killed 38 foreigners had left the country “in a state of war”. (Photo by Reuters/Stringer)

A woman cools off with her dog during the second heat wave of the summer at Conde del Guadalhorce reservoir in Ardales, near Malaga, southern Spain, July 5, 2015. As Germany and Spain sweated and London sweltered through its hottest July day on record this week, scientists said it is “virtually certain” that climate change is increasing the likelihood of such heat waves in Europe. Temperatures will rise up to 44 degrees Celsius (111.2 fahrenheit) in some parts of Spain and will continue during a week, the Spanish Agency of Meteorology (AEMET) said on Thursday. (Photo by Jon Nazca/Reuters)

Candidate Horacio Rodriguez Larreta of the PRO party poses alongside his wife Barbara after voting in an election for Buenos Aires' City Mayor in Buenos Aires, Argentina, July 5, 2015. The centre-right opposition in Argentina is looking to gain a boost Sunday in the mayoral elections in Buenos Aires city ahead of presidential elections later in the year. The Argentine capital has been led by businessman Mauricio Macri since 2007, who is leaving the post to run for president of the South American country. He is hoping to succeed left-leaning Cristina Fernandez de Kirchner, who along with her husband have led the country since 2003. Larreta, is seeking to score a first-round victory for the opposition by gaining more than half the vote. If no candidate is able to obtain more than half the votes, a run-off will be held on July 19. (Photo by Enrique Marcarian/Reuters)

“No” supporters celebrate referendum results on a street in central in Athens, Greece July 5, 2015. Greeks voted overwhelmingly “No” on Sunday in a historic bailout referendum, partial results showed, defying warnings from across Europe that rejecting new austerity terms for fresh financial aid would set their country on a path out of the euro. (Photo by Marko Djurica/Reuters)

A Kurdish man who lives in Lebanon wears a headband with a photo of the jailed Turkish Kurdish guerrilla leader Abdullah Ocalan, standing by a poster of him, during a demonstration in solidarity with their Kurdish brethren in northern Syria who are fighting against Islamic State group militants, in front of the United Nations headquarters in Beirut, Lebanon, Sunday, July 5, 2015. (Photo by Bilal Hussein/AP Photo)

A Kurdish girl who lives in Lebanon waves flags of the Kurdish People's Protection Units, also known as YPG, during a demonstration in solidarity with their Kurdish brethren in northern Syria who are fighting against Islamic State group militants, in front of the United Nations headquarters in Beirut, Lebanon, Sunday, July 5, 2015. (Photo by Bilal Hussein/AP Photo)

More than 14,000 people dressed in white sit in the Venaria Reale Garden during a flash mob-style “Cena in Bianco” (“Dinner in White”), in Venaria Reale near Turin on July 05, 2015. The “Diner en Blanc” is a chic secret pop-up style picnic phenomenon originally started in France. (Photo by Giuseppe Cacace/AFP Photo)

British singer Jessie J performs on the main stage at Wireless festival in Finsbury Park, London, Sunday, July 5, 2015. (Photo by Jonathan Short/Invision/AP Photo)

U.S singer Ciara Harris, better known by her stage name Ciara, performs on the second stage at Wireless festival in Finsbury Park, London, Sunday, July 5, 2015. (Photo by Jonathan Short/Invision/AP Photo)

An Afghan policeman frisks a man while a burqa-cald woman sits in the trunk of a car on a roadside in Herat, Afghanistan, 05 July 2015. At least 18 police, two civilians and 30 rebels were killed in central Afghanistan during three days of fierce fighting, police said on 04 July. The clashes ended 04 July after security forces retook control of nine police checkpoints that had fallen to the rebels. (Photo by Jalil Rezayee/EPA)

Britain's Prince William, Kate the Duchess of Cambridge, with son Prince George and daughter Princess Charlotte in a pram arrive for Charlotte's Christening at St. Mary Magdalene Church in Sandringham, England, Sunday, July 5, 2015. (Photo by Matt Dunham/AP Photo)

A supporter of the No vote makes the victory sign after the results of the referendum at Syntagma square in Athens, Sunday, July 5, 2015. Greeks overwhelmingly rejected creditors' demands for more austerity in return for rescue loans in a critical referendum Sunday, backing Prime Minister Alexis Tsipras, who insisted the vote would give him a stronger hand to reach a better deal. (Photo by Emilio Morenatti/AP Photo)

Filipinos take cover from the rain underneath a container van as Tropical Storm Linfa enhanced the southwest monsoon in Manila, Philippines on Sunday, July 5, 2015. Tropical Storm Linfa blew across northern Philippines' causing floods and knocking out power in several towns in provinces. (Photo by Aaron Favila/AP Photo)

People visit Clinfton beach, during a hot summer's day in Karachi, Pakistan, Sunday, July 5, 2015. Many cities in Pakistan are facing heat wave conditions with temperatures reaching up to 47 degrees Celsius (116.6 Fahrenheit) in some places. (Photo by Fareed Khan/AP Photo)

In this July 4, 2015, photo, a woman smiles as she slides along South State Street on the University of Michigan campus during Slide the City, in Ann Arbor, Mich. (Photo by Dominic Valente/Detroit News via AP Photo)