People rest inside a sports hall of a primary school, transformed into temporary accommodation for people fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 19, 2022. REUTERS/Fabrizio Bensch 

A Ukrainian refugee fleeing the Russian invasion of Ukraine, rests at a tent after crossing the border between Ukraine and Poland, in Kroscienko, Poland, March 22, 2022. REUTERS/Hannah McKay 

Hanna Mykhalivna, a Ukrainian refugee from Chernihiv waits on the platform after arriving from Odesa at Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 21, 2022.REUTERS/Hannah McKay 

Two refugees kids from Ukraine, fleeing the Russian invasion of Ukraine, runs towards a bus at a newly built arrival centre on the tarmac of the former Tegel airport in Berlin, Germany, March 22, 2022. REUTERS/Hannibal Hanschke TPX IMAGES OF THE DAY 

Refugees rest in a ballroom, which has been converted to a temporary shelter, at the Mandachi hotel after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Suceava, Romania, March 20, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian boy Vladislaw, 7, who fled Russia's invasion of Ukraine eats at a living room of a clergy house in Lubaczow, Poland March 21, 2022. Polish Catholic priest Roman Karpowicz hosts women with children from Ukraine who fled the invasion at the clergy house. REUTERS/Kacper Pempel 

A Ukrainian woman reacts upon arriving in Madrid with a group of Spanish taxi drivers who drove to Poland to support the mass evacuation of refugees in Madrid, Spain, March 17, 2022. REUTERS/Susana Vera 

Refugees fleeing Russia's invasion of Ukraine arrive in Goerlitz via Poland, on their way to Leipzig, at the central station in Goerlitz, Germany, March 22, 2022. REUTERS/Matthias Rietschel 

Ukrainian refugees disembark from a bus at Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 20, 2022. REUTERS/Hannah McKay 

A young Ukrainian refugee waits to disembark a train arriving from Lviv at Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 20, 2022. REUTERS/Hannah McKay 

Ukrainian refugees walk on the platform after arriving from Odesa at Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 21, 2022.REUTERS/Hannah McKay 

Refugees walk along a road as they leave the city during Ukraine-Russia conflict in the besieged southern port of Mariupol, Ukraine March 20, 2022. REUTERS/Alexander Ermochenko 

A general view shows a sports hall of a primary school, transformed into temporary accommodation for people fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 19, 2022. REUTERS/Fabrizio Bensch 

A refugee from Ukraine looks for textiles in a donation collection point organised by Dresden's Ukraine Catholic parish, amid Russia's invasion of Ukraine, in Dresden, Germany, March 17, 2022. REUTERS/Matthias Rietschel 

A Ukrainian woman gestures upon arriving with members of her family in Madrid with a group of Spanish taxi drivers who drove to Poland to support the mass evacuation of refugees in Madrid, Spain, March 17, 2022. REUTERS/Susana Vera 

Refugees gather around a van offering transport after fleeing from Ukraine to Romania, amid Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 16, 2022. REUTERS/Clodagh Kilcoyne 

Egor, 5, comforts his mother Helen Yakubets who cries in a ballroom, which has been converted to a temporary shelter, at the Mandachi hotel after fleeing from Chernihiv in Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Suceava, Romania, March 20, 2022. Her 18 year old son and husband remain in Ukraine to fight. REUTERS/Clodagh Kilcoyne TPX IMAGES OF THE DAY 

People wait inside an evacuee bus after fleeing from Mariupol, amid Russia's invasion of Ukraine, in Zaporizhzhia, Ukraine March 22, 2022. Picture taken March 22, 2022. REUTERS/Stringer 

People fleeing their homes due to Russia's invasion of Ukraine shelter at Bronx FitnessHub club, in Lviv, Ukraine, March 23, 2022. REUTERS/Pavlo Palamarchuk 

Residents of the Ukrainian city of Mariupol stay at a temporary accommodation centre for evacuees located in the building of a local sports school in Taganrog in the Rostov region, Russia March 23, 2022. REUTERS/Sergey Pivovarov 

Ukrainian refugees rest inside Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, Poland, March 23, 2022.REUTERS/Hannah McKay 

Women from Kharkiv are reunited with their friend from Chernihiv in Ukraine after fleeing to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 22, 2022. REUTERS/Clodagh Kilcoyne TPX IMAGES OF THE DAY 

A refugee woman fleeing Russia's invasion of Ukraine looks on through a window before the train starts, on her way to Leipzig, at the central station in Goerlitz, Germany, March 22, 2022. REUTERS/Matthias Rietschel 

A woman fleeing Russia's invasion of Ukraine lifts her daughter as she arrives at an arrival center in the BOK sport hall, in Budapest, Hungary March 22, 2022. REUTERS/Bernadett Szabo 

A woman holds mobile phone, amid Russia's invasion of Ukraine, at a shelter for refugees, in Rzeszow, Poland, March 20, 2022. REUTERS/Kacper Pempel 

Ukrainian refugees wait to board a bus to take them to a temporary shelter outside Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, Poland, March 23, 2022.REUTERS/Hannah McKay 

A refugee rests on a mattress in a ballroom, which has been converted to a temporary shelter, at the Mandachi hotel after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Suceava, Romania, March 20, 2022. REUTERS/Clodagh Kilcoyne 

Aysel 33, from Kherson, Ukraine, hugs her husband as their daughter Aylin, 6, looks at them as they meet, amid Russia's invasion of Ukraine, at the border crossing in Medyka, Poland March 23, 2022. REUTERS/Kacper Pempel 

A man uses a smartphone as he rests in a gym of one of local educational institutions , amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 24, 2022. REUTERS/Pavlo Palamarchuk 

A woman sits on the bed at a shelter for refugees, amid Russia's invasion of Ukraine, in Rzeszow, Poland, March 20, 2022. REUTERS/Kacper Pempel 

People fleeing their homes rest in a gym of one of local educational institutions, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 24, 2022. REUTERS/Pavlo Palamarchuk 

People board a train to Poland from Lviv railway station, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 22, 2022. REUTERS/Pavlo Palamarchuk 

People fleeing their homes rest in a gym of one of local educational institutions, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 24, 2022. REUTERS/Pavlo Palamarchuk 

Refugees rest in a ballroom, which has been converted to a temporary shelter, at the Mandachi hotel after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Suceava, Romania, March 20, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian refugees wait to board a bus to take them to a temporary shelter outside Przemysl Glowny train station, after fleeing the Russian invasion of Ukraine, Poland, March 23, 2022.REUTERS/Hannah McKay 

A woman makes a phone call after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 22, 2022. REUTERS/Clodagh Kilcoyne