Australian Olympic team member Sally Pearson poses during the official launch of the team uniforms for the 2016 Rio Olympics, in front of the Sydney Harbour Bridge, Australia, April 19, 2016. (Photo by David Gray/Reuters)





Members of a crowd wait to listen to Democratic U.S. presidential candidate Bernie Sanders speak during a campaign rally at Hunter's Point in the Queens borough of New York, U.S., April 18, 2016. (Photo by Lucas Jackson/Reuters)





A delegation representing U.S. President Barack Obama's arts and humanities committee watch a dance performance at the Superior Institute of Arts in Havana, Cuba, April 18, 2016. (Photo by Reuters/Stringer)





A U.S. airman guides a U.S. Air Force MQ-9 Reaper drone as it taxis to the runway at Kandahar Airfield, Afghanistan March 9, 2016. (Photo by Josh Smith/Reuters)





Thailand's Prime Minister Prayuth Chan-ocha greets traditional dancers as he arrives for a weekly cabinet meeting at Government House in Bangkok, Thailand, April 19, 2016. (Photo by Chaiwat Subprasom/Reuters)





A traditional dancer stands while attending an event with Thailand's Prime Minister Prayuth Chan-ocha at Government House in Bangkok, Thailand, April 19, 2016. (Photo by Chaiwat Subprasom/Reuters)





Thailand's Prime Minister Prayuth Chan-ocha greets traditional dancers as he arrives for a weekly cabinet meeting at Government House in Bangkok, Thailand, April 19, 2016. (Photo by Chaiwat Subprasom/Reuters)





Students from the military's territorial defence program hold brochures before a military campaign to tell people to vote in an August referendum on a new constitution in Bangkok, Thailand April 19, 2016. (Photo by Athit Perawongmetha/Reuters)





An Afghan National Army (ANA) soldier takes up position at the site of a suicide car bomb attack in Kabul, Afghanistan April 19, 2016. (Photo by Omar Sobhani/Reuters)





Security officials secure the area surrounding the Ministry of Defense during a gun battle with Taliban militants in Kabul, Afghanistan, 19 April 2016. At least 28 people were killed and another 327 wounded in a Taliban suicide attack in a high security zone in Kabul, where an explosion was followed by a clash between Afghan troops and insurgents. (Photo by Hedayatullah Amid/EPA)





Security officials secure the area surrounding the Ministry of Defense, in Kabul, Afghanistan, 19 April 2016. At least 28 people were killed and another 327 wounded in a Taliban suicide attack in a high security zone in Kabul, where an explosion was followed by a clash between Afghan troops and insurgents. (Photo by Jawad Jalali/EPA)





Lutz Bachmann (L), co-founder of Patriotic Europeans Against the Islamisation of the West (PEGIDA), arrives with his wife Vicky at a courtroom for his trial to be charged with incitement over Facebook posts in a court in Dresden, Germany, April 19, 2016. (Photo by Fabrizio Bensch/Reuters)





A lion statue outside Spain's parliament in Madrid, Spain, is seen fitted with glasses to celebrate Spanish writer Miguel de Cervantes' famous novel “Don Quijote” (Don Quixote), as part of a commemoration of the 400th anniversary of the writer's death, April 19, 2016. (Photo by Andrea Comas/Reuters)





Bedouin honour guards await the arrival of France's President Francois Hollande at the Royal Palace in Amman, Jordan, April 19, 2016. (Photo by Muhammad Hamed/Reuters)





Labourers work at the Luzhniki Stadium, which is under construction for the 2018 World Cup, in Moscow, Russia, April 19, 2016. (Photo by Maxim Shemetov/Reuters)





An employee poses with hops, barley and water, the base of ingredients, at the “Kloster Andechs” brewery in Andechs near Munich, Germany, April 19, 2016. Germany this year marks 500 years of the so-called Reinheitsgebot (purity law), introduced in Bavaria in 1516 to limit the ingredients used in the beer production to hops, barley and water. (Photo by Michaela Rehle/Reuters)





A family eats rations inside their vehicle where they have sheltered for three days in the earthquake-hit Mashiki, Kumamoto prefecture, Japan Tuesday, April 19, 2016. More than 100,000 evacuees, some sleeping in their cars and others in gymnasiums or community centers, were bracing for another chilly night. Many people are afraid to stay in their homes as aftershocks continued to shake the area on the southern island of Kyushu, including a 5.5-magnitude temblor Tuesday afternoon. (Photo by Naoya Osato/Kyodo News via AP Photo)





Yuji Maeda, whose father is missing, cries as he watches search and rescue operation at a site where houses collapsed due to a landslide caused by an earthquake in Minamiaso town, Kumamoto prefecture, Japan, in this photo taken by Kyodo April 19, 2016. (Photo by Reuters/Kyodo News)





A man inspects damaged shops after an airstrike on a market in the town of Maarat al-Numan in the insurgent stronghold of Idlib province, Syria April 19, 2016. (Photo by Ammar Abdullah/Reuters)





Men unload flour from a Red Crescent and United Nations aid convoy in the rebel held besieged town of Hamoria area, in the eastern suburbs of Damascus, Syria April 19, 2016. (Photo by Bassam Khabieh/Reuters)





Ultra-Orthodox Jewish youths collect food during a distribution of food for families for the upcoming Jewish holiday of Passover near Jerusalem's Mea Shearim neighbourhood April 19, 2016. (Photo by Ronen Zvulun/Reuters)





Ultra-Orthodox Jewish men carry bags of food during a distribution of food for families for the upcoming Jewish holiday of Passover near Jerusalem's Mea Shearim neighbourhood April 19, 2016. (Photo by Ronen Zvulun/Reuters)





A young man dives into the water at Salthill beach in Galway, Ireland April 19, 2016. (Photo by Clodagh Kilcoyne/Reuters)





South Sudanese wrestlers take part in a wrestling match for peace in Juba on April 19, 2016. The last wrestling match for peace was held in Juba the day before civil war broke out in December 2013. (Photo by Carl de Souza/AFP Photo)





A Sri Lankan daily wage labourer carries a sack of cabbage through a street in Colombo, Sri Lanka, Tuesday, April 19, 2016. Casual labours play an essential role in the daily distribution of vegetables and other perishable items throughout the capital Colombo. (Photo by Eranga Jayawardena/AP Photo)





Paul Bolton and Philipp Scholz compete in the first day of the Red Bull Minas Riders endurance motorcycle rally in Belo Horizonte, Brazil on April 19, 2016. (Photo by Red Bull/SIPA/Rex Features/Shutterstock)





In this January 5, 2014, file photo, people watch a bluefin tuna laid in front of a sushi restaurant near Tsukiji fish market after the year's celebratory first auction in Tokyo. The latest assessment by scientists paints a likely bleak future for the Pacific bluefin tuna, the favorite of sushi-lovers whose population has dropped by more than 97 percent from its historic levels. (Photo by Shizuo Kambayashi/AP Photo)





Ivory carvings and elephant tusks are lit on fire by firefighters for the first Cameroon ivory burn, attended by U.S. Ambassador to the United Nations Samantha Power at the Palais des Congres in Yaounde, Cameroon, Tuesday, April 19, 2016, to highlight the need to halt the Ivory trade in order to save Africa's elephants. Power is visiting Cameroon, Chad, and Nigeria to highlight the growing threat Boko Haram poses to the Lake Chad Basin region. (Photo by Andrew Harnik/AP Photo)





A firefighter throws a plastic bag of accelerant onto the first ever Cameroon Ivory Burn, attended by U.S. Ambassador to the United Nations Samantha Power at the Palais des Congres in Yaounde, Cameroon, Tuesday, April 19, 2016, to highlight the need to halt the Ivory trade in order to save Africa's elephants. (Photo by Andrew Harnik/AP Photo)





Hot air balloons are seen over rock formations near the town of Goreme on April 17, 2016 in Nevsehir, Turkey. Cappadocia, a historical region in Central Anatolia dating back to 3000 B.C is one of the most famous tourist sites in Turkey. Listed as a World Heritage Site in 1985, and known for its unique volcanic landscape, fairy chimneys, large network of underground dwellings and some of the best hot air ballooning in the world, Cappadocia is preparing for peak tourist season to begin in the first week of May. Despite Turkey's tourism downturn, due to the recent terrorist attacks, internal instability and tension with Russia, local vendors expect tourist numbers to be stable mainly due to the unique activities on offer and unlike other tourist areas in Turkey such as Antalya, which is popular with Russian tourists, Cappadocia caters to the huge Asian tourist market. (Photo by Chris McGrath/Getty Images)





A hot air balloon is seen over rock formations on April 18, 2016 in Nevsehir, Turkey. (Photo by Chris McGrath/Getty Images)





A young girl runs through a section of an underground city on April 17, 2016 in Nevsehir, Turkey. (Photo by Chris McGrath/Getty Images)





Chicken vendor German Fuentes pauses to look at earthquake damage in the business district as he works selling his birds in Manta, Ecuador, Tuesday, April 19, 2016. The strongest earthquake to hit Ecuador in decades flattened buildings and buckled highways along its Pacific coast, sending the Andean nation into a state of emergency. (Photo by Rodrigo Abd/AP Photo)





Villagers look at a rift in the highway created by a 7.8-magnitude earthquake, in Chacras, Ecuador, Tuesday, April 19, 2016. (Photo by Rodrigo Abd/AP Photo)





A family wake up after sleeping outside their collapsed home, destroyed by an earthquake in Manta, Ecuador, Tuesday, April 19, 2016. (Photo by Rodrigo Abd/AP Photo)





A picture taken on April 16, 2016 shows a group of herders assisting a malnourished camel carrying a load in Sitti Zone, in the Somali Region of Ethiopia. Sitti Zone is one of the most affected by the drought caused by the El Nino climate phenomenon. Ethiopia struggles to combat its worst drought for 30 years, with at least 10.2 million people needing food aid. (Photo by Vincent Defait/AFP Photo)





Workmen install a new mural by Frederick Wimsett, of Britain's Queen Elizabeth II to mark her 90th birthday celebrations, in central London, Tuesday, April, 19, 2016. The longest-reigning monarch in British history turns 90 on Thursday. (Photo by Alastair Grant/AP Photo)





Democratic presidential candidate Hillary Clinton points to members in the audience after speaking at the 2016 Legislative Conference of North America's Building Trades Unions in Washington, Tuesday, April 19, 2016. (Photo by Pablo Martinez Monsivais/AP Photo)





A man transports his son on a scooter along a road in Beijing, China on April 18, 2016. (Photo by Fred Dufour/AFP Photo)





In this Monday, April 18, 2016 photo, Marzetta Hoskin points at a penguin with her son, Christian Jones, in the underwater tunnel at the Polk Penguin Conservation Center in Royal Oak, Mich. The center opened to the public Monday. (Photo by Robin Buckson/Detroit News via AP Photo)





Female elephant Benji uses her tusks to lift zookeeper Stefan Frank prior to a foot care at the Stukenbrock zoo in Schloss Holte-Stukenbrock, Germany, Tuesday, April 19, 2016. (Photo by Friso Gentsch/DPA via AP Photo)





A miniature model of a football game scenery in a scale of 1:87 is pictured during a photo preview for the “Intermodellbau” trade fair on April 19, 2016 in Dortmund, Germany. More than 550 exhibitors from 19 countries exhibit over 20,000 individual items from 20 to 24 April, 2016. (Photo by Patrik Stollarz/AFP Photo)





Flight of the Breitling Jet Team over Fort Lauderdale Beach on April 18, 2016 in Fort Lauderdale, Florida. (Photo by Splash News)





Residents flee as rockets fired from Syria land in the Turkish town of Kilis on April 19, 2016. More rockets hit a Turkish town on the Syrian border, wounding at least three people, a day after five were killed by fire from an area of Syria controlled by jihadists, a Turkish government official said. (Photo by AFP Photo/Stringer)





This file photo taken on March 03, 2016 shows Students attendING a class in the Moscow State Academy of Choreography, better known as the Bolshoi Ballet Academy, in Moscow. The academy, which was founded in 1773 by Empress Catherine the Great, produced famous Soviet ballet-dancers Olga Lepeshinskaya, Maya Plisetskaya, Maris Liepa, among many others. (Photo by Yuri Kadobnov/AFP Photo)