Colombia's Lina Marcela Rivas Ordonez is surrounded by coaches as she prepares for her final lift attempt in the women's 58kg weightlifting at the Pan Am Games in Oshawa, Ontario, Sunday, July 12, 2015. She won gold in the event. (Photo by Rebecca Blackwell/AP Photo)

Melanie Eileen Roach of the U.S. tightens her belt before attempting a lift n the women's 53kg weightlifting at the Pan Am Games in Oshawa, Ontario, Sunday, July 12, 2015. (Photo by Rebecca Blackwell/AP Photo)

Colombia's Lina Marcela Rivas Ordonez reacts after a failed lift attempt in the women's 58kg weightlifting at the Pan Am Games in Oshawa, Ontario, Sunday, July 12, 2015. (Photo by Rebecca Blackwell/AP Photo)

Clive Aquatic Center lifeguard Sam Cohrs exits the water slide for a pool check as temperatures rise Monday, July 13, 2015, in Clive, Iowa. The National Weather Service has issued an excessive heat warning for parts of Kansas, Missouri, Iowa and Illinois. (Photo by Rodney White/The Des Moines Register via AP Photo)

Singer Tinashe arrives at the KODE 6 Party held at The Standard on Sunday, July 12, 2015, in West Hollywood, Calif. (Photo by John Salangsang/Invision/AP Photo)

A member of team Mexico competes during the Synchronized Swimming Team Finals at the Toronto 2015 Pan American Games in Toronto, Canada July 11, 2015. Canada won the gold medal. (Photo by Timothy A. Clary/AFP Photo)

The Racing sausages take part in a race before the IndyCar Series race at the Milwaukee Mile in West Allis, Wis., Sunday, July 12, 2015. (Photo by Jeffrey Phelps/AP Photo)

An Indian paramilitary soldier stands guard outside a closed market during a curfew in Srinagar, Indian controlled Kashmir, Monday, July 13, 2015. Parts of Indian-controlled Kashmir remained under curfew to stop a rally by separatist groups in memory of the day in 1931 when the region's Hindu king ordered more than 20 Kashmiri Muslims executed in a bid to put down an uprising. July 13 is observed as Martyrs' Day in the state. (Photo by Dar Yasin/AP Photo)

Brazil's Flavia Lopes performs on the balance beam during women's artistic gymnastics team competition in the Pan Am Games in Toronto, Sunday, July 12, 2015. (Photo by Gregory Bull/AP Photo)

Brazil's Daniele Matias Hypolito looks skyward as she waits for her score on the balance beam during women's artistic gymnastics team competition in the Pan Am Games in Toronto, Sunday, July 12, 2015. Brazil took the bronze medal, the United States won the gold, and Canada won the silver in the event. (Photo by Gregory Bull/AP Photo)

A Prelate captures a photo of Pope Francis' jetliner as is taxi's off into the runway, in Asuncion, Paraguay, Sunday, July 12, 2015. In a week long tour to some of South America's poorest countries the Pope started his trip back to Rome after visiting Ecuador, Bolivia and Paraguay. (Photo by Cesar Olmedo/AP Photo)

Tourists watch as a woman, wearing a traditional Sevillana dress, performs at Marques de Larios street in downtown Malaga, on Costa del Sol, southern Spain, July 12, 2015. The Spanish government raised the terror-alert level to 4, out of a maximum of 5, after the attacks in France, Tunisia and Kuwait, Spain's Interior Minister Jorge Fernandez Diaz announced on June 26. (Photo by Jon Nazca/Reuters)

A woman sits in front of a shop selling stools after buying one in the Bras neighborhood of Sao Paulo in this August 9, 2013 file photo. Brazil is expectyed to release May retail sales data this week. (Photo by Nacho Doce/Reuters)

People carry the body of a man they recovered from the site of a Saudi-led air strike in Yemen's capital Sanaa July 13, 2015. Saudi-led air raids killed 21 civilians in Yemen's capital Sanaa on Monday morning, relatives of the victims and medics told Reuters, two days after the start of a United Nations-brokered humanitarian truce that Riyadh does not recognise. (Photo by Khaled Abdullah/Reuters)

People search for survivors at the site of a Saudi-led air strike in Yemen's capital Sanaa July 13, 2015. (Photo by Khaled Abdullah/Reuters)

Girls cry after some of their relatives were killed by a Saudi-led air strike in Yemen's capital Sanaa July 13, 2015. (Photo by Khaled Abdullah/Reuters)

Rescuers and government workers clear a road after landslides brought on by torrential monsoon rains, killed two people on Kennon Road at Benguet province in northern Philippines July 13, 2015. Torrential monsoon rains killed at least eight people in the Philippines, the country's disaster relief agency said on Monday, and the toll was expected to rise as two tropical storms battered northern Luzon, the main island in the archipelago. About 40,000 people across Luzon were affected by the monsoon rain and nearly 4,000 were in temporary shelters due to floods and landslides. (Photo by Harley Palangchao/Reuters)

Residents walk on a road covered with debris after landslides brought on by torrential monsoon rains, killed two people in Kennon Road in Benguet province in northern Philippines July 13, 2015. (Photo by Harley Palangchao/Reuters)

Indian police officers try to detain Javid Mir (C), a leader of the moderate faction of the All Parties Hurriyat (Freedom) Conference (APHC), during a march in Srinagar July 13, 2015. Indian police on Monday stopped the supporters of APHC when they tried to march towards the Martyrs graveyard in Srinagar to mark Martyrs Day. On July 13, 1931, dozens of Kashmiris were gunned down by police during a protest against the Hindu Maharaja Hari Singh, then ruler of the Himalayan region. The Kashmir state government also observes the day as Martyrs Day and has declared July 13 a holiday. (Photo by Danish Ismail/Reuters)

Indian policemen in ceremonial attire perform during an event at martyrs graveyard to mark “Martyrs Day” in Srinagar July 13, 2015. (Photo by Danish Ismail/Reuters)

Members of Jammu and Kashmir police band, in red uniform, and policemen take cover from the rain at a shrine as trumpets are placed on the ground in Srinagar, Indian controlled Kashmir, Monday, July 13, 2015. Parts of Indian-controlled Kashmir remained under curfew Monday to stop a rally by separatist groups in memory of the day in 1931 when the region's Hindu king ordered more than 20 Kashmiri Muslims executed in a bid to put down an uprising. July 13 is observed as Martyrs' Day in the state. (Photo by Dar Yasin/AP Photo)

A therapist applies traditional moxibustion treatment on a patient in Yiwu, Zhejiang province, July 13, 2015. Many Chinese believe that applying herbs on acupuncture points during summer can prevent diseases and ailments in the winter. (Photo by Reuters/China Daily)

Pro-Russian rebels guard a check point on a road outside the eastern Ukrainian town of Lugansk, Ukraine, July 12, 2015. (Photo by Kazbek Basayev/Reuters)

A man stands in front of a tank of pro-Russian rebels damaged in fighting with Ukrainian government forces and set as a memorial outside the eastern Ukrainian town of Lugansk, Ukraine, July 12, 2015. (Photo by Kazbek Basayev/Reuters)

Women walk towards a Ukrainian government serviceman searching for members of Right Sector in the village of Bobovyshche near Mukacheve, Ukraine, July 13, 2015. Kiev has called on Right Sector, which played a prominent role in protests that toppled Moscow-backed President Viktor Yanukovich a year ago, to lay down their weapons after a shootout on Saturday in the town of Mukacheve killed at least two people. (Photo by Reuters/Stringer)

Ukrainian government servicemen ride on top of an armoured personnel carrier (APC) during search for members of Right Sector in the village of Bobovyshche near Mukacheve, Ukraine, July 13, 2015. (Photo by Reuters/Stringer)

A chimpanzee drinks beverage to cool off the summer heat in Shenyang, Liaoning province, July 12, 2015. (Photo by Reuters/China Daily)

A man walks past pictures of ancient coins in central Athens, Greece, July 13, 2015. Euro zone leaders agreed on a roadmap to a possible third bailout for near-bankrupt Greece on Monday, but Athens must enact key reforms this week before they will start talks on a financial rescue to keep it in the European currency area. (Photo by Jean-Paul Pelissier/Reuters)

Passengers wait in line to get their tickets verified and enter Senen Train Station in Jakarta, Indonesia, July 13, 2015. Millions of Indonesian Muslims across the country are heading to their hometowns to celebrate Eid al-Fitr, a Muslim holiday to mark the end of Ramadan. (Photo by Darren Whiteside/Reuters)

Passengers wait for their train to East Java on a platform in Senen Train Station in Jakarta, Indonesia, July 13, 2015. (Photo by Darren Whiteside/Reuters)

Forensic experts inspect the site of a bomb attack in the southern province of Pattani, Thailand, July 13, 2015. Three soldiers were injured in the explosion, according to local media. (Photo by Surapan Boonthanom/Reuters)

Britain's Prince William checks his helicopter as he begins his new job as a co-pilot with the East Anglian Air Ambulance (EAAA) at Cambridge Airport, Britain July 13, 2015. (Photo by Stefan Rousseau/Reuters)

Kate Pocklington, 32, a Lee Kong Chian Natural History Museum conservator from Britain, removes flesh from the ribs of a sperm whale carcass near the western coast of Singapore July 13, 2015. Pocklington is part of a five-man team who will spend up to two weeks to deflesh the carcass before preparing the skeleton for display at the museum. The 10.6m (35 ft.) long female sperm whale beached itself onto Singapore shores on Friday and according to local media, was a species that had never previously been found in the waters around Singapore or Peninsular Malaysia. (Photo by Edgar Su/Reuters)

A vendor prepare cookies for customers ahead of Eid al-Fitr, which marks the end of Ramadan, in Mazar-i-Sharif, Afghanistan July 13, 2015. (Photo by Anil Usyan/Reuters)

A woman sits next to giant matryoshka dolls inside a terminal of Sochi's airport in Adle, Russia, July 13, 2015. Russia will host the World Cup soccer tournament for FIFA in 2018. (Photo by Maxim Shemetov/Reuters)

A man works at a factory which produces agro-machines, in Ha Dong, outside Hanoi, Vietnam July 13, 2015. Vietnam's economic growth could rise to 6.5 percent in 2015, beyond the 6.2 percent target, thanks to a solid manufacturing sector, the Finance Ministry said late last month, citing a government think tank. (Photo by Reuters/Kham)

Mexico's President Enrique Pena Nieto (C), Mexico's First Lady Angelica Rivera (2ndR) and French Justice Minister Christiane Taubira (L) visit the Hotel National des Invalides during a welcoming ceremony in Paris, France, July 13, 2015. Mexican President Enrique Pena Nieto starts a state visit to France. (Photo by Thibault Camus/Reuters)

Mexico's First Lady Angelica Rivera gestures as she attends a welcoming ceremony at the Hotel National des Invalides in Paris, France, July 13, 2015. (Photo by Thibault Camus/Reuters)

A wild cow charges at a reveller after the seventh running of the bulls of the San Fermin festival in Pamplona, northern Spain, July 13, 2015. (Photo by Joseba Etxaburu/Reuters)

A Garcigrande fighting bull slides at the Mercaderes curve during the seventh running of the bulls of the San Fermin festival in Pamplona, northern Spain, July 13, 2015. (Photo by Joseba Etxaburu/Reuters)

A runner falls next to a Garcigrande fighting bull at the Mercaderes curve during the seventh running of the bulls of the San Fermin festival in Pamplona, northern Spain, July 13, 2015. (Photo by Joseba Etxaburu/Reuters)

An injured unidentified runner is taken away following the seventh running of the bulls of the San Fermin festival in Pamplona, northern Spain, July 13, 2015. Two runners were gored in the run that lasted two minutes and twelve seconds, according to local media. (Photo by Joseba Etxaburu/Reuters)

Women react as they are hit with a sponge by a “Zaldiko” (men wearing horse figures) during San Fermin festival's “Comparsa de gigantes y cabezudos” (Parade of Giants and Big Heads) in Pamplona, northern Spain, July 13, 2015. (Photo by Susana Vera/Reuters)

A street vendor of coffee kisses his girlfriend as he waits for clients in central Kiev, Ukraine, July 13, 2015. (Photo by Gleb Garanich/Reuters)

A woman walks down a street in central Kiev, Ukraine, July 13, 2015. (Photo by Gleb Garanich/Reuters)

An activist holds up a menu and placard as she and other Greenpeace volunteers and Indonesian marine activists stage a campaign at a popular Chinese restaurant as they demonstrate against the consumption of shark's fin in Jakarta on July 12, 2015. According to environmentalists about 66 per cent of species of sharks and rays found in Indonesia face threat of extinction as the country is one of the largest supplier of shark's fin products. (Photo by Romeo Gacad/AFP Photo)

Greenpeace volunteers and Indonesian marine activists stage a campaign at a popular Chinese restaurant as they demonstrate against the consumption of shark's fin in Jakarta on July 12, 2015. (Photo by Romeo Gacad/AFP Photo)

Greenpeace volunteers and Indonesian marine activists stage a campaign at a popular Chinese restaurant as they demonstrate against the consumption of shark's fin in Jakarta on July 12, 2015. (Photo by Romeo Gacad/AFP Photo)

Palestinian members of the marine unit of the al-Qassam Brigades, the armed wing of the Hamas movement, take part in an anti-Israel parade in Rafah, in the southern Gaza Strip July 13, 2015. (Photo by Ibraheem Abu Mustafa/Reuters)

A services brigade of the Russian Railways replaces rail tracks of the Trans-Siberian Railway outside the Siberian city of Krasnoyarsk, Russia, July 13, 2015. (Photo by Ilya Naymushin/Reuters)

A services brigade of the Russian Railways replaces rail tracks of the Trans-Siberian Railway outside the Siberian city of Krasnoyarsk, Russia, July 13, 2015. (Photo by Ilya Naymushin/Reuters)

A services brigade of the Russian Railways replaces rail tracks of the Trans-Siberian Railway outside the Siberian city of Krasnoyarsk, Russia, July 13, 2015. (Photo by Ilya Naymushin/Reuters)

A services brigade of the Russian Railways replaces rail tracks of the Trans-Siberian Railway outside the Siberian city of Krasnoyarsk, Russia, July 13, 2015. (Photo by Ilya Naymushin/Reuters)

Stingrays swim in a shallow pool at the Brookfield Zoo in Brookfield, Illinois in this undated handout photo provided by Brookfield Zoo. The Brookfield Zoo near Chicago is investigating what caused all 54 of its stingrays to die, a zoo spokeswoman said on July 13, 2015. Four southern stingrays and 50 cownose rays died on Friday after the oxygen level dropped in the exhibit habitat, the zoo said in a statement. (Photo by Reuters/Brookfield Zoo)

A boy wears a bull mask on the eighth day of the San Fermin festival in Pamplona, northern Spain, July 13, 2015. The festival, a heady mix of drinking, dancing, late nights and bullfights, made famous by Ernest Hemingway in his novel “The Sun Also Rises”, runs for nine days until July 14. (Photo by Eloy Alonso/Reuters)

A anti bullfighting protester with Stop Torture written on his back is chased by assistants during a bullfight by Spanish matador Juan Jose Padilla at the San Fermin festival in Pamplona July 13, 2015. (Photo by Vincent West/Reuters)

A Southern Resistance fighter walks past an armoured personnel carrier taken by resistance fighters from Houthi fighters in the Emran outskirts of Yemen's southern port city of Aden July 13, 2015. The Houthis, who took over the capital Sanaa last September, have been battling local fighters in the south for three months. (Photo by Reuters/Stringer)

Southern Resistance fighters stand with a tank destroyed during fighting against Houthi fighters in the Emran outskirts of Yemen's southern port city of Aden July 13, 2015. (Photo by Reuters/Stringer)

Solar powered lights are pictured along the Hoernli ridge on the Matterhorn in Zermatt, Switzerland, July 13, 2015. Zermatt celebrates the first ascent of the Matterhorn on the Hoernli ridge made by Briton Edward Whymper on July 14, 1865, with 6 other roped team members. The red light (4th from top) marks where on their descent four men fell to their death on the North face. All mountaineering activities will be banned on July 14 on the Swiss and Italian side of the Alpine summit in remembrance of the more the 500 people who died trying its summit. (Photo by Denis Balibouse/Reuters)

U.S. actor Michael Douglas rings the closing bell above the floor of the New York Stock Exchange shortly after the closing bell in New York, July 13, 2015. (Photo by Lucas Jackson/Reuters)

Miss Delaware Renee Bull and contestants backstage at the 2015 Miss USA Pageant Only On ReelzChannel at The Baton Rouge River Center on July 12, 2015 in Baton Rouge, Louisiana. (Photo by Lee Celano/Getty Images for Miss USA)

Visitors to an exhibit called “The BEACH” play in a simulated ocean of nearly one million translucent plastic balls at the National Building Museum in Washington, DC, USA, 11 July 2015. The 10,000 square foot (3,000 square meter) exhibit also includes beach chairs, umbrellas, and a simulated shoreline. (Photo by Jim Lo Scalzo/EPA)

Mount Raung spews volcanic ash as seen from Sumber Arum village in Banyuwangi, East Java, Indonesia, 13 July 2015. A volcanic eruption on Indonesia's Java island has forced the closure of four airports, including those on the popular tourist islands of Bali. Mount Raung, located in East Java province, has been spewing ash and rocks since June, prompting authorities to raise its alert to the second highest level. (Photo by Fully Handoko/EPA)

Workers assemble customised parts of a wall to build a tower at the Oktoberfest grounds Theresienwiese in Munich, Germany, 13 July 2015. The Munich Beer Festival 2015 will run from 19 September to 04 October. (Photo by Peter Kneffel/EPA)

A steam-powered tugboat after it caught on fire during the NAVIGA NS World Championship for Scale Ship Models in Bankut, some 180 kms northeast of Budapest, Hungary, 12 July 2015. At the week-long event, 250 competitors attend with 320 ship models from 14 countries. (Photo by Peter Komka/EPA)

Tiger Woods of the United States, second right, walks across the 11th green during a practice round at St Andrews Golf Club prior to the start of the British Open Golf Championship, in St. Andrews, Scotland, Monday, July 13, 2015. (Photo by Jon Super/AP Photo)

Kite surfers take part in the Tarifa Kitesurfing World Championships 2015 at Los Lances beach, near Tarifa on July 11, 2015. (Photo by Jorge Guerrero/AFP Photo)

Brazil's Liliane Maestrini dives for a ball in Brazil's beach volleyball preliminary match against Nicaragua, at the Pan Am Games in Toronto, Monday, July 13, 2015. (Photo by Rebecca Blackwell/AP Photo)

The United States' Kelley Larsen gives a hand signal to her teammate during their women's beach volleyball preliminary match against El Salvador, at the Pan Am Games in Toronto, Monday, July 13, 2015. (Photo by Rebecca Blackwell/AP Photo)

Brazil's Liliane Maestrini, with her fingernails painted in the colors of the national flag, blocks the ball, during Brazil's beach volleyball preliminary match against Nicaragua at the Pan Am Games in Toronto, Monday, July 13, 2015. (Photo by Rebecca Blackwell/AP Photo)

The bull Smoke Show goes after Mike Lee of Fort Worth, Texas after he got bucked off in the Bull Riding event during Championship Sunday at the finals of the Calgary Stampede rodeo in Calgary, Alberta, July 12, 2015. (Photo by Todd Korol/Reuters)

A tornado builds and travels southwest causing damage near Dean Rd. and 82nd Avenue in Hutchinson, Kan. on Monday, July 13, 2015. (Photo by Sandra J. Milburn/The Hutchinson News via AP Photo)