Local residents are seen in a shelter located in the basement of their building, damaged by a Russian military strike, amid Russia's attack on Ukraine, in the front line city of Vuhledar, Ukraine February 18, 2023. REUTERS/Yevhen Titov 

People take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine January 26, 2023. REUTERS/Viacheslav Ratynskyi 

A local woman stand at an entrance to a bomb shelter with the word 'people' written on the wall, amid Russia's attack on Ukraine, in the town of Siversk, Donetsk region, Ukraine March 5, 2023. REUTERS/Alex Babenko 

Iryna Sichkar exits the basement door of a former Soviet nuclear bunker, that became her home as her hometown was located between front lines and devastated by shelling in the beginning of the war, amid Russia's invasion of Ukraine, in Luch, Mykolaiv region, Ukraine, February 24, 2023. REUTERS/Lisi Niesner 

A teacher conducts a lesson for school students as they take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine February 10, 2023. REUTERS/Viacheslav Ratynskyi 

A man controls the fire in a wood stove in a basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner 

Cabbage heads are stored in a basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner 

A man washes his hands in a basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukrain,e March 6, 2023. REUTERS/Lisi Niesner 

Irina Babkina, 46, uses a torch to make her way in the basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner TPX IMAGES OF THE DAY 

A man rests in a basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine March 6, 2023. REUTERS/Lisi Niesner 

Irina Babkina, 46, closes the door of the basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner TPX IMAGES OF THE DAY 

People take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine January 26, 2023. REUTERS/Viacheslav Ratynskyi 

A woman covers her eyes in a dark basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner 

A woman is evacuated from a basement of a residential building, near the frontline, as Russia?s invasion of Ukraine continues, in Siversk, Donetsk region, February 28, 2023. REUTERS/Lisi Niesner 

A local resident prepares hot water in a shelter located in the basement of his building, which was damaged by a Russian military strike, amid Russia's attack on Ukraine, in the front line city of Vuhledar, Ukraine February 18, 2023. REUTERS/Yevhen Titov TPX IMAGES OF THE DAY 

Tetyana Kovalyova, 79, whose house was destroyed during months of Russian occupation, opens the door of the basement where she and her husband Stepan, 80, now live, amid Russia's invasion of Ukraine, in the village of Posad-Pokrovske, northwest of the city of Kherson, Ukraine January 25, 2023. There is no central power or heating and the surrounding fields are heavily mined, making them unworkable. Yet the couple, along with Stepan's brother Volodymyr and his wife who live nearby, has decided to stay in the isolated farming village to live out their days in the place they know best. REUTERS/Nacho Doce SEARCH "DOCE UKRAINE VILLAGE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

People wait in a basement shelter, as Russia's attack on Ukraine continues, in Velyka Novosilka near the frontline, in Donetsk region, Ukraine, March 6, 2023. REUTERS/Lisi Niesner 

People take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine February 10, 2023. REUTERS/Vladyslav Musiienko 

A man sits in his shelter, amid Russia's attack on Ukraine, in Siversk, Donetsk region, Ukraine, February 18, 2023. REUTERS/Marko Djurica 

Local residents sit inside a bomb shelter in the frontline town of Bakhmut, amid Russia's attack on Ukraine, in Donetsk region, Ukraine February 15, 2023. REUTERS/Yevhenii Zavhorodnii TPX IMAGES OF THE DAY 

People take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine February 10, 2023. REUTERS/Vladyslav Musiienko