A child uses a hand pump to extract water on the banks of the river Yamuna in New Delhi, India, April 19, 2018. REUTERS/Saumya Khandelwal

Tear gas floats in the air near French CRS riot police during a demonstration against the French government's reform plans in Paris as part of a national day of protest, France, April 19, 2018.

Soccer Football - La Liga Santander - Real Sociedad vs Atletico Madrid - Anoeta Stadium, San Sebastian, Spain - April 19, 2018 Atletico Madrid's Saul Niguez in action

People watch a ceremony commemorating the 75th anniversary of the Warsaw Ghetto Uprising, from the Museum of the History of Polish Jews, in Warsaw, Poland April 19, 2018.

A woman walks her dog in the sunshine in St James Park, London, Britain, April 19, 2018.

A Central American migrant, moving in a caravan through Mexico, stands on a wagon of a freight train as he embarks on a new leg of their travels, in Tlaquepaque, in Jalisco state, Mexico April 19, 2018.

Brazilian soldiers of Armed Forces participate in a parade during an Army Day ceremony, in Brasilia, Brazil April 19, 2018.

Newly elected Cuban President Miguel Diaz-Canel (L) reacts as former Cuban President Raul Castro raises his hand during the National Assembly in Havana, Cuba, April 19, 2018.

A model presents creations by student designer Sherly Az Zahra on the first day of the Indonesia Muslim Fashion Festival in Jakarta, Indonesia, April 19, 2018.

A woman stands at her ruined house, after residents were allowed to return to their homes for the first time since the battle between government troops and Islamic State militants began on May 2017, at the Islamic city of Marawi, Philippines April 19, 2018.

A Palestinian beekeeper uses smoke to calm bees in the process of collecting honey at a farm near the Israel-Gaza border in the northern Gaza Strip April 19, 2018.

A woman holds her malnourished daughter undergoing treatment at a hospital in Sanaa, Yemen April 19, 2018.

The bullet-riddled domes of Grand Mosque are seen, after residents were allowed to return to their homes for the first time since the battle between government troops and Islamic State militants began on May 2017, at the Islamic city of Marawi, Philippines April 19, 2018. REUTERS/Erik De Castro

Britain's Queen Elizabeth II greets Canadian Prime Minister Justin Trudeau in a receiving line for the Queen's Dinner for the Commonwealth Heads of Government Meeting (CHOGM) at Buckingham Palace in London, Thursday, April 19, 2018.

Tayna (L), 22, and Alexandra (R), 47, who are blind, get make up put on by their teacher during a cosmetics class set up to help boost self-esteem at the Laramara association in Sao Paulo, Brazil April 18, 2018. Picture taken April 18, 2018.

A man relaxes in the sunshine near City Hall with the financial district in the background in London, Britain, April 19, 2018.