Smoke rises behind a runway in Moscow's Vnukovo airport, Russia, Tuesday, April 11, 2017, prior to the arrival of U.S. Secretary of State Rex Tillerson. Tillerson is due to meet with Russian Foreign Minister Sergey Lavrov on Wednesday. (Photo by Ivan Sekretarev/AP Photo)





U.S. Secretary of State Rex Tillerson attends a welcoming ceremony upon his arrival at Vnukovo International Airport in Moscow, Russia April 11, 2017. (Photo by Maxim Shemetov/Reuters)





Iraqi women flee heavy fighting in the Yarmouk district of western Mosul, Iraq, Tuesday, April 11, 2017. (Photo by Maya Alleruzzo/AP Photo)





This undated handout picture taken by Dave Brosha and released by the Australian Antarctic Division on April 11, 2017 shows research on whales being conducted in the Gerlache Strait in Antarctica. Whale cams have revealed the secret feeding habits of the giant mammals in frozen Antarctica, details on their social lives, and even how they must blow hard to clear sea ice to breathe. (Photo by Dave Brosha/AFP Photo/APA/Australian Antarctic Division)





Anthony Smith pushes his dogs Noodles, center, and Deva in a bicycle basket on a spring afternoon at Rittenhouse Square in Philadelphia, Tuesday, April 11, 2017. (Photo by Matt Rourke/AP Photo)





Britain's Prince Philip, Duke of Edinburgh (2L) watches as his wife Britain's Queen Elizabeth II feeds an elephant named 'Donna' after opening the new Centre for Elephant Care at ZSL Whipsnade Zoo in Whipsnade, north of London, on April 11, 2017. (Photo by Ben Stansall/AFP Photo)





A statue of Jesus Christ, created by British artist Mark Wallinger and entitled “Ecce Homo” is pictured on the steps of St. Paul's Cathedral in London on April 11, 2017, following its installation. The sculpture, created by the artist to appear on the fourth plinth in Trafalgar Square in 1999, has been placed outside the Cathedral in collaboration with Amnesty International and the Cathedral, to highlight the plight of all those currently in prison, suffering torture or facing execution because of their political, religious or other conscientiously-held beliefs, is set to remain in place until May 22. (Photo by Daniel Leal-Olivas/AFP Photo)





A Syrian woman shouts slogans during a demonstration outside the United Nation's (UN) office in the capital Damascus, on April 11, 2017, in support of their country's President Bashar al-Assad. Hundreds of Syrian students gathered outside the United Nations headquarters in Damascus to protest last week's American strike on a government air base. (Photo by Louai Beshara/AFP Photo)





Faithful fancy dressed as “talciguines” – characters of the local folklore – take part in the celebration of an ancient local tradition that marks the start of Holy Week, on April 10, 2017 in Texistepeque, some 83 km west of San Salvador. The talciguines are devils who lash Catholic faithful to cleanse their sins. (Photo by Marvin Recinos/AFP Photo)





Media wait for the arrival of former Iranian Culture Minister and conservative politician Mostafa Mir-Salim (c) at the Ministry of Interior in Tehran, Iran, 11 April 2017 during the registration for Iran's upcoming presidential elections on 19 May. Media reported that registration for candidates started on 11 April at the Ministry of Interior and will continue for five days. (Photo by Abedin Taherkenareh/EPA)





Demonstrators clash with the Venezuelan National Guard (GNB) in Caracas, Venezuela, on 10 April 2017. The security forces of Venezuela disperse, for fifth time in the last days, an opposition protest with the participation of hundred of people that demonstrate against the Supreme Court. (Photo by Miguel Gutierrez/EPA)





Marie-Rose Trogh, 71 years old, is surrounded by her collection of Elvis Presley memorabilia in Brussels, Belgium, 11 April 2017. Trogh has been collecting Elvis Presley items since 1977, the year the US singer and actor died. She stopped counting her collection after 10,000 pieces. (Photo by Stephanie Lecocq/EPA)





A student who was evacuated after a shooting at North Park Elementary School is embraced after groups of them were reunited with parents waiting at a high school in San Bernadino, California, U.S. April 10, 2017. (Photo by Mario Anzuoni/Reuters)





Smoke is seen coming out from a building after an explosion in Diyarbakir, Turkey April 11 ,2017 in this still frame taken from video. (Photo by Reuters TV/Stringer)





A woman reacts as she looks at the site of a strong blast near the riot police headquarters in the center of Diyarbakir, southeastern Turkey, on April 11, 2017. The explosion which shook police headquarters in Diyarbakir on Tuesday morning was an accident which occurred during repair work, the interior minister said. According to Turkey' s Interior Minister, no external forces had been involved in the incident in the restive majority Kurdish city which happened during repair work on armoured vehicles at police headquarters. He said one person was seriously hurt while another was trapped under rubble. (Photo by Ilyas Akengin/AFP Photo)





A shop owner sits near the site after an explosion in Diyarbakir, Turkey, Tuesday, April 11, 2017. An explosion inside a workshop where a police armored vehicle was being repaired killed one man and injured a number of other people, Turkish police said Tuesday. The blast in the mainly Kurdish city of Diyarbakir caused part of the workshop – an annex to the city's main police headquarters – to collapse. (Photo by AP Photo/Stringer)





People carry the body of Ali Mohammed Dagga, a driver who according to local media reports died after he was hit by a stone while driving his vehicle during clashes between Kashmir demonstrators and Indian police on Monday evening during a protest against recent civilian killings, for his funeral in Srinagar, India April 11, 2017. (Photo by Danish Ismail/Reuters)





South Sudanese refugee women, displaced by fighting, rest at Imvepi settlement in Arua district, northern Uganda, April 4, 2017. (Photo by James Akena/Reuters)





The bus carrying the Borussia Dortmund squad in a street in Dortmund, Germany, 11 April 2017 with a visibly damaged window. Three explosive devices detonated near the bus shortly after its departure from the hotel in which the team was staying according to a statement by police in the city. The bus was damaged in two places. One person was injured and treated in a hospital. (Photo by Kai Pfaffenbach/Reuters/Livepic)





Antonio Banderas and Nicole Kimpel attend a procession during the Holy Week celebrations on April 10, 2017 in Malaga, Spain. (Photo by Europa Press/Europa Press via Getty Images)





Penitents from the Cristo de la Buena Muerte (Good Dead Christ) brotherhood take part in a procession in the early hours of the morning on April 11, 2017 in Zamora, Spain. Spain celebrates holy week before Easter with processions in most Spanish towns and villages. (Photo by Pablo Blazquez Dominguez/Getty Images)





A fan shows her emotions after the postponment of the game prior to the UEFA Champions League Quarter Final first leg match between Borussia Dortmund and AS Monaco at Signal Iduna Park on April 11, 2017 in Dortmund, Germany. The match was cancelled after an explosion near the Borussia Dortmund team coach en route to the stadium. (Photo by Dean Mouhtaropoulos/Bongarts/Getty Images)





U.S. Marine soldiers patrol during the U.S.-South Korea joint Exercise Operation Pacific Reach in Pohang, South Korea, Tuesday, April 11, 2017. North Korea is vowing tough counteraction to any military moves that might follow the U.S. move to send the USS Carl Vinson aircraft carrier and its battle group to waters off the Korean Peninsula. (Photo by Ahn Young-joon/AP Photo)





Policeman patrols at Pushkinskaya subway station in St.Petersburg, Russia, Friday, April 7, 2017. A bomb blast tore through a subway train under Russia's second-largest city on Monday, killing many people and wounding many others. Eight members of extremist cells have been arrested in connection with last week's deadly bombing on the subway in St. Petersburg, Russia's intelligence chief said Tuesday. (Photo by Dmitri Lovetsky/AP Photo)





In this Tuesday, April 4, 2017 file photo, victims of the suspected chemical weapons attack lie on the ground, in Khan Sheikhoun, in the northern province of Idlib, Syria. Turkey's health minister, Recep Akdag said Tuesday, April 11, 2017, that test results conducted on victims of the chemical attack in Khan Sheikhoun confirm that sarin gas was used. Officials from the World Health Organization and the Organization for the Prohibition of Chemical Weapons participated in the autopsies. (Photo by Alaa Alyousef via AP Photo)





In this photo released by Saudi Press Agency, Saudi King Salman, right, and Philippine President Rodrigo Duterte look at a model of a camel, in Riyadh, Saudi Arabia, Tuesday April 11, 2017. (Photo by Saudi Press Agency via AP Photo)





In this September 17, 2011 file photo, a Taiwanese man holds his dog during a gathering to demand establishment of a government department to protect dogs and cats from their owners who abused or dumped the animals in Taipei, Taiwan. Taiwan on Wednesday, April 12, 2017 has banned the sale and consumption of dog and cat meat and increased the penalty for animal cruelty. (Photo by Chiang Ying-ying/AP Photo)





A Christian pilgrim is baptised by a priest in the muddy water of the Jordan River at the Kasser-Al-Yahud baptismal site near the West Bank city of Jericho, on April 11, 2017. According to the gospels Jesus Christ was baptised in the waters of the Jordan River by John the Baptist. (Photo by Gali Tibbon/AFP Photo)