A woman covers her face during a rally held by residents of the Pankisi gorge, who protest against the planned construction of a hydropower plant, near the village of Birkiani, Georgia April 21, 2019. REUTERS/Ekaterina Anchevskaya TPX IMAGES OF THE DAY - RC1797CBFE70

A protester reacts at a demonstration during Act XXIII (the 23rd consecutive national protest on Saturday) of the yellow vests movement in Paris, France, April 20, 2019.

A view from a Canadian Forces helicopter shows the flooded region of Rigaud, Quebec, Canada April 21, 2019.

Climate change activists practice yoga on Waterloo Bridge during the Extinction Rebellion protest in London, Britain April 20, 2019.

Crime scene officials inspect the site of a bomb blast inside a church in Negombo, Sri Lanka April 21, 2019. REUTERS/Stringer

A demonstrator carries a rock during clashes with riot police officers in a protest against Nicaraguan President Daniel Ortega's government at the Metropolitan Cathedral in Managua, Nicaragua April 19, 2019.

Flowers and a candle are left at the exact spot where 29-year-old journalist Lyra McKee was shot dead, in Londonderry, Northern Ireland April 20, 2019.

A Central American migrant lies on a roadside as he gets help from paramedics due to dehydration during his journey towards the United States, in Mapastepec, Mexico April 20, 2019. REUTERS/Jose Cabezas TPX IMAGES OF THE DAY - RC119D9386A0

Sudanese demonstrators use their mobile phone torches as lamps as they attend a mass anti-government protest outside the Defence Ministry in Khartoum, Sudan, April 21, 2019.

A Central American migrant lies on a roadside as he gets help from paramedics due to dehydration during his journey towards the United States, in Mapastepec, Mexico April 20, 2019.

Pope Francis presides over the Via Crucis (Way of the Cross) torchlight procession on Good Friday, in front of Rome's Colosseum, in Rome, Italy Friday, April 19, 2019.Andrew Medichini/Pool via REUTERS

A Central American migrant lies on a roadside as he gets help from paramedics due to dehydration during his journey towards the United States, in Mapastepec, Mexico April 20, 2019.

U.S. President Donald Trump greets supporters on the tarmac at Palm Beach International Airport, as he arrives to spend Easter weekend at his Mar-a-Lago club, in West Palm Beach, Florida, U.S., April 18, 2019.

A police officer kicks a canister at a demonstration during Act XXIII (the 23rd consecutive national protest on Saturday) of the yellow vests movement in Paris, France, April 20, 2019.

Cassanda Sadusky, survivor of the attack, looks at a line of crosses commemorating those killed in the Columbine High School shooting on the 20th anniversary of the attack in Littleton, Colorado, U.S., April 20, 2019.

Soccer Football - Ligue 1 - Paris St Germain v AS Monaco - Parc des Princes, Paris, France - April 21, 2019 Paris St Germain's Kylian Mbappe celebrates scoring their third goal and completing his hat-trick with 'Notre-Dame' on his shirt .

Ultra-Orthodox Jews burn leaven in the Mea Shearim neighbourhood of Jerusalem ahead of the Jewish holiday of Passover, in Jerusalem April 19, 2019.

Protesters hold signs which read "Barr" in reference to U.S. Attorney General William Barr, following the release of the Mueller report on U.S. President Donald Trump at the White House in Washington, U.S., April 18, 2019.

Alaa Salah, a Sudanese protester whose video gone viral and make her an icon for the mass anti-government protests, stands in front of a mural depicting her in front of the Defence Ministry in Khartoum, Sudan, April 20, 2019.

Boxing - Teofimo Lopez v Edis Tatli - Madison Square Garden, New York, U.S. - April 20, 2019. Teofimo Lopez and Edis Tatli in action.

A woman reacts to the sun coming out of the clouds during the annual Easter Parade and Bonnet Festival on Fifth Avenue in New York City, New York, U.S. April 21, 2019.

An aerial view of tulip fields near the city of Creil, Netherlands April 18, 2019. Picture taken April 18, 2019.

Members of the Libyan internationally recognised government forces fire during fighting with Eastern forces in Ain Zara in Tripoli, Libya April 20, 2019. REUTERS/Hani Amara TPX IMAGES OF THE DAY - RC157C0A6770

Ukrainian presidential candidate Volodymyr Zelenskiy reacts following the announcement of the first exit poll in a presidential election at his campaign headquarters in Kiev, Ukraine April 21, 2019.