A Ukrainian boy rides a scooter, in a residential neighbourhood damaged by Russian shelling, as the Russian invasion of Ukraine continues, in Irpin, Ukraine, May 14, 2022. REUTERS/Ahmed Jadallah 

A man walks past a car overturned after a Russian bombing hit a garage, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 15, 2022. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY 

A man walks past a residential building destroyed during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine May 12, 2022. REUTERS/Alexander Ermochenko 

A teddy bear hangs on a swing next to a damaged building in Saltivka district, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 17, 2022. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY 

Destroyed houses are pictured in Vilhivka village, amid Russia's attack on Ukraine, near Kharkiv, Ukraine, May 11, 2022. Picture taken with a drone. REUTERS/Ricardo Moraes 

A view shows a residential building heavily damaged during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine May 11, 2022. Picture taken with a drone. REUTERS/Pavel Klimov 

A damaged building is pictured in Saltivka district, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 17, 2022. REUTERS/Ricardo Moraes 

Tetyana Pochivalova reacts outside her destroyed house in Vilhivka village, amid Russia's attack on Ukraine, near Kharkiv, Ukraine, May 11, 2022. REUTERS/Ricardo Moraes 

A damaged building is pictured in Saltivka district, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 17, 2022. REUTERS/Ricardo Moraes 

A damaged building is pictured in Saltivka district, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 17, 2022. REUTERS/Ricardo Moraes 

Two girls sit in a a public square in front of destroyed buildings amid Russia's invasion of Ukraine, in Borodyanka outside Kyiv, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Jorge Silva 

Former students Yana Shulyak and Olena Zhornik use a swing at the playground of a destroyed school, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 14, 2022. REUTERS/Ricardo Moraes 

A view shows a residential building burnt during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine May 15, 2022. Picture taken with a drone. REUTERS/Pavel Klimov 

A view of a residential area destroyed by a Russian bombing, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 15, 2022. REUTERS/Ricardo Moraes 

A man crouches near a building destroyed in yesterday's shelling, amid Russia's invasion, in the village of Komyshuvakha, Ukraine May 12, 2022. REUTERS/Gleb Garanich 

A view shows a damaged house, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, May 14, 2022. REUTERS/Ricardo Moraes 

A rocket is pictured inside a multi-sports court of a school, where, according to residents, Russian soldiers were based before the Ukrainian Army retook the Vilhivka village, amid Russia's attack on Ukraine, near Kharkiv, Ukraine, May 11, 2022. REUTERS/Ricardo Moraes 

Houses destroyed by Russian shelling of a residential area are seen as the Russian invasion of Ukraine continues, in Irpin, Ukraine, May 13, 2022. Picture taken May 13, 2022. Picture taken with a drone. REUTERS/Carlos Barria 

Residents Anna collects items from the kitchen of her apartment inside a residential building that was destroyed during Russia's invasion of Ukraine in the town of Borodianka, in Kyiv region, Ukraine May 13, 2022. REUTERS/Vladyslav Musiienko 

Residents react after a Russian bombing hit the House of Culture in Derhachi, which was used to distribute aid, amid Russia's attack on Ukraine, near Kharkiv, Ukraine, May 13, 2022. REUTERS/Ricardo Moraes 

A view shows a residential building destroyed during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine May 12, 2022. Picture taken with a drone. REUTERS/Pavel Klimov 

A view shows residential buildings heavily damaged during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine May 12, 2022. Picture taken with a drone. REUTERS/Pavel Klimov