Alexandra, 12, holds her sister Esyea, 6, who cries as she waves at her mother Irina, while members of the Jewish community of Odessa board a bus to flee Russia's invasion of Ukraine, in Odessa, Ukraine, March 7, 2022. REUTERS/Alexandros Avramidis TPX IMAGES OF THE DAY 

Alisa, a 3-year-old from Kharkiv, wraps herself with a blanket after crossing the border from Ukraine to Poland along with her mother, after fleeing the Russian invasion of Ukraine, at the border checkpoint in Medyka, Poland, March 9, 2022. REUTERS/Fabrizio Bensch 

Children look out from an evacuation train from Kyiv to Lviv as they say goodbye to their father at Kyiv central train station in central Kyiv, Ukraine March 3, 2022. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

A woman cries as she comforts her son after learning she has to leave a bus which was reserved for the evacuation of orphans fleeing the ongoing Russian invasion outside the main train station in Lviv, Ukraine, March 5, 2022. REUTERS/Kai Pfaffenbach 

A man and a child escape from the town of Irpin, after heavy shelling on the only escape route used by locals, while Russian troops advance towards the capital of Kyiv, in Irpin, near Kyiv, Ukraine March 6, 2022. REUTERS/Carlos Barria 

A police officer says goodbye to his son as his family flees from advancing Russian troops as Russia's attack on Ukraine continues in the town of Irpin outside Kyiv, Ukraine, March 8, 2022. REUTERS/Thomas Peter TPX IMAGES OF THE DAY 

Rada, 2, eats after fleeing Kharkiv during Russia's invasion of Ukraine, at the border checkpoint in Medyka, Poland, March 11, 2022. REUTERS/Fabrizio Bensch 

People fleeing Russia's invasion of Ukraine play as they shelter in a school, in Drohobych, Ukraine, March 8, 2022. Picture taken March 8, 2022. REUTERS/Viacheslav Ratynskyi 

A member of military carries a baby as people flee near a destroyed bridge to cross Irpin River as Russia's invasion on Ukraine continues, in Irpin outside Kyiv, Ukraine, March 9, 2022. REUTERS/Mikhail Palinchak 

Anna, 7 years old is are covered in rescue blankets together with her doll fleeing the Russian invasion of Ukraine with her mother while wait to board a bus after crossing the border from Ukraine to Poland at the border checkpoint in Medyka, Poland, March 7, 2022. REUTERS/Fabrizio Bensch 

A member of the Ukrainian security forces hands over a girl to a man as civilians wait to board a train while fleeing Russia's invasion of Ukraine, in Odessa, Ukraine, March 9, 2022. REUTERS/Alexandros Avramidis 

A baby is evacuated as people flee near a destroyed bridge to cross Irpin River as Russia's invasion on Ukraine continues, in Irpin outside Kyiv, Ukraine, March 9, 2022. REUTERS/Mikhail Palinchak 

Children looking out of a train window waiting for the departure to Poland following Russia?s invasion of Ukraine at the main train station in Lviv, Ukraine, March 4, 2022. REUTERS/Kai Pfaffenbach 

Children look on as people fleeing Russia's invasion of Ukraine shelter in a school, in Drohobych, Ukraine, March 8, 2022. Picture taken March 8, 2022. REUTERS/Viacheslav Ratynskyi 

A girl holds a doll as civilians fleeing Russia's invasion of Ukraine board a train, in Odessa, Ukraine, March 8, 2022. REUTERS/Alexandros Avramidis 

Newborn boy Ivan reacts nexts to his mother as they take shelter in the basement of a perinatal centre as air raid siren sounds are heard amid Russia's invasion of Ukraine, in Kyiv, Ukraine, March 2, 2022. REUTERS/Valentyn Ogirenko 

Rimma, a three-year-old girl evacuated from Mariupol area, holds a cat in a tent before leaving a refugee camp in the settlement of Bezymennoye for the territory of Russia during Ukraine-Russia conflict in the Donetsk region, Ukraine March 8, 2022. REUTERS/Alexander Ermochenko 

A boy sits in a shelter for people fleeing Russia's invasion of Ukraine, in Lviv, Ukraine, March 2, 2022. Picture taken March 2, 2022. REUTERS/Thomas Peter 

Refugees evacuated on a train from the Kyiv area, following the Russian invasion of Ukraine, arrive at the train station in Lviv, Ukraine, March 7, 2022. REUTERS/Kai Pfaffenbach 

People walk on a train platform as refugees flee Russia's invasion of Ukraine towards Poland, in the train station in Lviv, Ukraine March 5, 2022. REUTERS/Kai Pfaffenbach 

Refugees sitting in a train prior to their departure to Poland following Russia’s invasion of Ukraine at the main train station in Lviv, Ukraine, March 4, 2022. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY 

An elderly women comforts a child as they stay inside of an underground shelter located at a metro station as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 2, 2022. REUTERS/Carlos Barria TPX IMAGES OF THE DAY 

A local resident reacts to the sound of shell explosions while sitting near a child in a bomb shelter in the separatist-controlled settlement of Mykolaivka (Nikolaevka) in the Donetsk region, Ukraine March 1, 2022. REUTERS/Alexander Ermochenko 

A girl looks out of a train window waiting for the departure to Poland following Russia?s invasion of Ukraine at the main train station in Lviv, Ukraine, March 4, 2022. REUTERS/Kai Pfaffenbach