South Korean President Moon Jae-in and North Korean leader Kim Jong Un embrace at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, South Korea, April 27, 2018. Korea Summit Press Pool/Pool via Reuters TPX IMAGES OF THE DAY

A woman adjusts her sunglasses as she has her picture taken amid thousands of ranunculus flowers at the Flower Fields in Carlsbad, California, U.S., April 26, 2018. REUTERS/Mike Blake

Bill Cosby reacts while being notified a verdict is in at the Montgomery County Courthouse in his sexual assault retrial, in Norristown, Pennsylvania, U.S., April 26, 2018. Mark Makela/Pool via Reuters

South Korean President Moon Jae-in and North Korean leader Kim Jong Un shake hands at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, South Korea, April 27, 2018. Korea Summit Press Pool/Pool via Reuters TPX IMAGES OF THE DAY

A migrant, part of a group intercepted aboard two dinghies off the coast in the Mediterranean Sea, rests on a rescue boat upon arrival at the port of Malaga, Spain April 26, 2018. REUTERS/Jon Nazca TPX IMAGES OF THE DAY

Tear gas canisters are fired by Israeli troops at Palestinian demonstrators during clashes at a protest demanding the right to return to their homeland, at the Israel-Gaza border in the southern Gaza Strip, April 27, 2018. REUTERS/Ibraheem Abu Mustafa TPX IMAGES OF THE DAY

Detained Mai-Mai Yakutumba rebels, captured by Congolese soldiers from the Armed Forces of the Democratic Republic of Congo (FARDC) look out of a container in Namoya, Maniema Province, eastern Democratic Republic of Congo, April 26, 2018. REUTERS/Goran Tomasevic

Bill Cosby accusers (L-R) Caroline Heldman, Lili Bernard and Victoria Valentino (R) react after the guilty on all counts verdict was delivered in the sexual assault retrial at the Montgomery County Courthouse in Norristown, Pennsylvania, U.S., April 26, 2018. Mark Makela/Pool via Reuters

North Korean leader Kim Jong Un's sister Kim Yo Jong walks at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, South Korea, April 27, 2018. Korea Summit Press Pool/Pool via Reuters TPX IMAGES OF THE DAY

Bill Cosby accuser Andrea Constand embraces Special Prosecutor Kristen Gibbons Feden during a news conference after a jury convicted actor and comedian Bill Cosby for sexual assault during a retrial in Norristown, Pennsylvania, U.S., April 26, 2018. REUTERS/Brendan McDermid TPX IMAGES OF THE DAY

A man walks along a flooded street in Cite Soleil, Port-au-Prince, Haiti, April 26, 2018. REUTERS/Andres Martinez Casares TPX IMAGES OF THE DAY

A mourner pays respects at a makeshift memorial on Yonge Street after a van attacked multiple people in Toronto, Ontario, Canada, April 26, 2018. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

A black liquid pours from a ruptured tank following an explosion at Husky Energy oil refinery in Superior, Wisconsin, U.S., April 26, 2018. REUTERS/Robert King/Duluth News Tribune

U.S. President Donald Trump poses with children of staff and press in the Oval Office of the White House on "take your child to work day" in Washington. U.S., April 26, 2018. REUTERS/Kevin Lamarque TPX IMAGES OF THE DAY

A model gets ready at the backstage before Amapo collection show during the Sao Paulo Fashion Week, Brazil April 26, 2018. REUTERS/Paulo Whitaker TPX IMAGES OF THE DAY

Cars drive as lightning strikes near the site where a group of Israeli youths was swept away by a flash flood, near the Zafit river bed, south to the Dead Sea, Israel, April 26, 2018. PictureÊtakenÊwithÊlong-timeÊexposure. REUTERS/Amir Cohen TPX IMAGES OF THE DAY

Sinan Usta, 24, poses for a selfie as he stands on the steps of an open door on the Eastern Express as it travels through Erzincan province en route from Ankara to Kars, Turkey, April 10, 2018. Sinan decorated the wagon with candles and rainbow coloured flashing lights for his girlfriend. "We had this journey planned months ago. But my girlfriend's family didn't allow her," he said. "I don't like leaving things unfinished, so I took the train anyway." REUTERS/Umit Bektas SEARCH "BEKTAS EXPRESS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Palestinians stand next to a collapsed part of the Israeli barrier, following heavy weather, near the refugee camp of Shuafat in East Jerusalem, April 26, 2018. REUTERS/Ammar Awad

An aerial view shows vehicles driving along a bridge across the Mana River during an ice drift near the Siberian village of Ust-Mana outside Krasnoyarsk, Russia April 26, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY

Women hold portraits of their relatives, who are victims of the Chernobyl nuclear disaster, during a commemoration ceremony in Kiev, Ukraine April 26, 2018. REUTERS/Valentyn Ogirenko TPX IMAGES OF THE DAY

Houthi supporters hold picutres of the late Saleh al-Samad, a senior Houthi official, as they attend a rally to protest his killing by a Saudi-led coalition air strike in Hodeidah, in Sanaa, Yemen April 26, 2018. REUTERS/Mohamed al-Sayaghi TPX IMAGES OF THE DAY

German Chancellor Angela Merkel attends a session of the lower house of parliament Bundestag in Berlin, Germany, April 26, 2018. REUTERS/Axel Schmidt TPX IMAGES OF THE DAY

Security personnel have lunch at the Auto China 2018 motor show in Beijing, China April 26, 2018. REUTERS/Jason Lee TPX IMAGES OF THE DAY

Models wait backstage before designer Lino Villaventura presents her collection during the Sao Paulo Fashion Week, Brazil April 25, 2018. REUTERS/Paulo Whitaker TPX IMAGES OF THE DAY

Soccer Football - Champions League Semi Final First Leg - Bayern Munich vs Real Madrid - Allianz Arena, Munich, Germany - April 25, 2018 Bayern Munich's Franck Ribery as a steward tackles a pitch invader after the match REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Syrian refugee and Olympic swimmer Yusra Mardini is pictured during a training session in a pool at the Olympic park in Berlin, Germany, April 12, 2018. Picture taken April 12, 2018. REUTERS/Fabrizio Bensch

Policemen collect trash in the waters off the beach at the holiday island of Boracay during the first day of a temporary closure for tourists, in Philippines April 26, 2018. REUTERS/Erik De Castro

An Israeli border police officer pushes back a Palestinian journalist in Hebron, in the occupied West Bank April 26, 2018. REUTERS/Mussa Qawasma TPX IMAGES OF THE DAY

Indigenous people protest against the Indigenous policies of the government of Brazilian President Michel Temer, in front of the national congress in Brasilia, Brazil April 26, 2018. REUTERS/Adriano Machado TPX IMAGES OF THE DAY

South Korean President Moon Jae-in's wife Kim Jung-sook walks with North Korean leader Kim Jong Un's wife Ri Sol Ju during a farewell ceremony at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, South Korea, April 27, 2018. Korea Summit Press Pool/Pool via Reuters TPX IMAGES OF THE DAY

North Korean leader Kim Jong Un (inside a vehicle) bids farewell to South Korean President Moon Jae-in as he leaves after a farewell ceremony at the truce village of Panmunjom inside the demilitarized zone separating the two Koreas, South Korea, April 27, 2018. Korea Summit Press Pool/Pool via Reuters TPX IMAGES OF THE DAY