A Ukrainian woman Zhanna Lishchynska cries after talking on mobile phone with her husband who is on the front lines of the war, amid Russia's invasion of Ukraine, in Zaporizhzhya, Ukraine April 17, 2022. REUTERS/Ueslei Marcelino 

A view of at least three rows of new graves for people killed during Russia's invasion of Ukraine, at a cemetery in Irpin, Kyiv region, Ukraine April 18, 2022. Picture taken with a drone. REUTERS/Zohra Bensemra TPX IMAGES OF THE DAY 

People take belongings out of a residential building, which was destroyed during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 17, 2022. REUTERS/Alexander Ermochenko TPX IMAGES OF THE DAY 

Women sit on a bed inside Azot chemical plant's bomb shelter, where people have been hiding from from shelling since the beginning of the war, in Sievierodonetsk, Luhansk region, Ukraine, April 16, 2022. REUTERS/Marko Djurica 

A gravedigger digs a new plot, amid Russia's invasion of Ukraine, at the cemetery in Irpin, Kyiv region, Ukraine April 18, 2022. REUTERS/Zohra Bensemra 

A local resident reacts while standing near a residential building, which was destroyed during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 17, 2022. REUTERS/Alexander Ermochenko 

Ludmyla, 63, walks past her daughter's shop, which according to her was destroyed by air missiles, amid Russia's invasion of Ukraine, in Trostianets, Sumy region, Ukraine April 15, 2022. REUTERS/Zohra Bensemra REFILE - CORRECTING INFORMATION 

Two men use plastic wrap to seal the window of a damaged apartment, following Russian shelling, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, April 17, 2022. REUTERS/Alkis Konstantinidis 

A local resident Liubov stands next to her house destroyed during Russia?s invasion in the village of Kukhari, in Kyiv region, Ukraine April 16, 2022. REUTERS/Vladyslav Musiienko 

Children’s shoes are seen left in a kindergarten damaged by a military strike, as Russia's attack on Ukraine continues, in Sievierodonetsk, Luhansk region, Ukraine April 16, 2022. REUTERS/Serhii Nuzhnenko 

Natalia Evdokimova, 46, touches a photograph of her son Dmytro Evdokimov, 23, who was killed in a battlefield near Izium in Kharkiv region, as she mourns him beside his grave at the cemetery in Trostianets, Sumy region, Ukraine April 16, 2022. REUTERS/Zohra Bensemra 

Inna, 28, and her son Sviatoslav, 2, stand beside a destroyed Russian army vehicle, amid Russia's invasion of Ukraine, in Trostianets, Sumy region, Ukraine April 15, 2022. REUTERS/Zohra Bensemra TPX IMAGES OF THE DAY 

Women carry their belongings in a street, which was damaged during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 14, 2022. REUTERS/Alexander Ermochenko 

People fix a house roof, which according to residents was destroyed by air missiles, amid Russia's invasion of Ukraine, in Trostianets, Sumy region, Ukraine April 15, 2022. REUTERS/Zohra Bensemra 

View of a heavily damaged apartment block, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, April 15, 2022. REUTERS/Alkis Konstantinidis 

A local resident sits next to a fire in a courtyard outside a building damaged during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 14, 2022. REUTERS/Alexander Ermochenko