A couple hugs while walking past a building that was heavily damaged by shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 10, 2022. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY 

A rescuer walks during a search operation for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. REUTERS/Zohra Bensemra 

Zinaida Makishaiva, 82, reacts as she recounts how Russian soldiers treated her, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. Zinaida said "They came to my house and said go to the basement, "bitch". She put a sign on her house reading "there are people here" Soldiers started to shoot around her to scare her. "God saved my life". REUTERS/Zohra Bensemra 

A rescuer walks during a search operation for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. REUTERS/Zohra Bensemra 

Rescuers search for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. REUTERS/Zohra Bensemra 

Rescuers search for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. REUTERS/Zohra Bensemra TPX IMAGES OF THE DAY 

A rescuer walks during a search operation for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 11, 2022. REUTERS/Zohra Bensemra 

People fleeing Russia's invasion of Ukraine wait to board a train to Lviv at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica 

People fleeing Russia's invasion of Ukraine wait to board a train to Lviv at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica 

People fleeing Russia's invasion of Ukraine sit in a train to Lviv at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica 

People fleeing Russia's invasion of Ukraine sit in a train to Lviv at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica 

Ukrainian servicemen help an elderly woman to board a train as she flees Russia's invasion of Ukraine at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica 

People fleeing Russia's invasion of Ukraine sit in a train to Lviv at a railway station in Sloviansk, Ukraine, April 11, 2022. REUTERS/Marko Djurica TPX IMAGES OF THE DAY 

Local resident Alla looks from the window of her apartment damaged by Russian shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 11, 2022. REUTERS/Alkis Konstantinidis 

A member of a bomb disposal team runs after conducting a controlled explosion of unexploded ordnance in an area where Russian mines were discovered, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 11, 2022. REUTERS/Alkis Konstantinidis 

Members of a bomb disposal team conduct a controlled explosion of unexploded ordnance in an area where Russian mines were discovered, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 11, 2022. REUTERS/Alkis Konstantinidis 

A member of a bomb disposal team investigates an area where Russian mines were discovered, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 11, 2022. REUTERS/Alkis Konstantinidis 

Graves of civilians killed during Ukraine-Russia conflict are seen next to apartment buildings in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Graves of civilians killed during Ukraine-Russia conflict are seen next to apartment buildings in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko TPX IMAGES OF THE DAY 

Emergency workers remove debris of a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Emergency workers remove debris of a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Emergency workers remove debris of a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Emergency workers remove debris of a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Residents walk near a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Residents carry their belongings near a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

A resident looks on near a building destroyed in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko TPX IMAGES OF THE DAY 

Residents carry their belongings near buildings destroyed in the course of Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Residents stand with their belongings on a street near a building burnt in the course of Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Residents carry their belongings across a street near a building burnt in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

A resident stands with her belongings on a street near a building burnt in the course of the Ukraine-Russia conflict, in the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

Military sappers carry unexploded shells left after Russia's invasion near the village of Motyzhyn, in Kyiv region, Ukraine April 10, 2022. REUTERS/Mykola Tymchenko 

Military sappers destroys unexploded shells found after Russia's invasion near the village of Motyzhyn, in Kyiv region, Ukraine April 10, 2022. REUTERS/Mykola Tymchenko 

Service members of pro-Russian troops drive armoured vehicles during Ukraine-Russia conflict on a road outside the southern port city of Mariupol, Ukraine April 10, 2022. REUTERS/Alexander Ermochenko 

A view shows the building of a theatre destroyed in the course of Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 10, 2022. Picture taken with a drone. REUTERS/Pavel Klimov 

A view shows the building of a theatre destroyed in the course of Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 10, 2022. Picture taken with a drone. REUTERS/Pavel Klimov 

People fleeing Russia's invasion of Ukraine embrace one another on a train platform at a railway station in Sloviansk, Ukraine, April 10, 2022. REUTERS/Marko Djurica 

People fleeing Russia's invasion of Ukraine walk on a train platform at a railway station in Sloviansk, Ukraine, April 10, 2022. REUTERS/Marko Djurica 

A rescuer holds a torch light to be used to search for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

A rescuer holds a torch light to search for bodies under the rubble of a building destroyed by Russian shelling, amid Russia's Invasion of Ukraine, in Borodyanka, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

A mother reacts as she waits for police members to exhume from a well the body of her son, who according to the head of the village was killed by Russian soldiers amid Russia's invasion of Ukraine, at a fuel station in Buzova, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

Bodies of civilians, who according to the head of the village were killed by Russian soldiers amid Russia's invasion of Ukraine, lie on the ground after police exhumed them from a well at the fuel station in Buzova, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

A mother reacts as she waits for police members to exhume from a well the body of her son, who according to the head of the village was killed by Russian soldiers amid Russia's invasion of Ukraine, at a fuel station in Buzova, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

Bodies of civilians, who according to the head of the village were killed by Russian soldiers amid Russia's invasion of Ukraine, lie on the ground after police exhumed them from a well at a fuel station in Buzova, Kyiv region, Ukraine April 10, 2022. REUTERS/Zohra Bensemra 

A monument to Ukrainian poet Taras Shevchenko is seen piled up with sandbags to protect it against damage from shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 10, 2022. REUTERS/Alkis Konstantinidis 

A local looks at a building that was heavily damaged by shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, April 10, 2022. REUTERS/Alkis Konstantinidis