A girl sleeps on the lap of her brother as they wait for their transfer, after fleeing the ongoing Russian invasion of Ukraine, outside the main train station in Lviv, Ukraine, March 14, 2022. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY 

Anna Tarasiuk, 1, sleeps with her barbie doll at Dumbraveni sports arena which has been converted to a shelter, after she fled the Dnepropetrovsk region in Ukraine with her family through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania March 15, 2022. REUTERS/Clodagh Kilcoyne 

Manuela, Raquela Kaptar, 2, and Sophia Tarasiuk, 8, watch cartoons on an iPhone at Dumbraveni sports arena which has been converted to a temporary shelter, after they fled with their families from Ukraine through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania March 15, 2022. REUTERS/Clodagh Kilcoyne 

Manuela, Raquela Kaptar, 2, and Sophia Tarasiuk, 8, watch cartoons on an iPhone at Dumbraveni sports arena which has been converted to a temporary shelter, after they fled with their families from Ukraine through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania March 15, 2022. REUTERS/Clodagh Kilcoyne 

Emma Kaptar, 9, works on her school lessons through her phone which is propped up by a dolls house at Dumbraveni sports arena which has been converted to a temporary shelter, after she fled Ukraine through a border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania March 15, 2022. REUTERS/Clodagh Kilcoyne 

A teddy bear that belongs to a child who fled Russia's invasion of Ukraine, is seen at the train station in Przemysl, Poland, March 15, 2022. REUTERS/Zohra Bensemra 

A boy who fled Russia's invasion of Ukraine, sits on a bench at the platform of the train station in Przemysl, Poland, March 15, 2022. REUTERS/Zohra Bensemra 

A boy who fled Russia's invasion of Ukraine, holds balloons as he walks at the platform of the train station in Przemysl, Poland, March 15, 2022. REUTERS/Zohra Bensemra 

Anna, 32, wife of Russian Orthodox church priest Mihail Pitnitskiy, 36 reacts after boarding a train to Budapest at the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 15, 2022. REUTERS/Fabrizio Bensch 

Anna, 32, wife of Russian Orthodox church priest Mihail Pitnitskiy, 36 and their children wait to board a train to Budapest at the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 15, 2022. REUTERS/Fabrizio Bensch 

People fleeing Russia's invasion of Ukraine walk at a train station before departing to Poland, in Lviv, Ukraine, March 15, 2022. REUTERS/Pavlo Palamarchuk 

A man carries a child in a stroller as people fleeing Russia's invasion of Ukraine gather at a train station before departing to Poland, in Lviv, Ukraine, March 15, 2022. REUTERS/Pavlo Palamarchuk 

A police officer carries a child as people fleeing Russia's invasion of Ukraine gather at a train station before departing to Poland, in Lviv, Ukraine, March 15, 2022. REUTERS/Pavlo Palamarchuk 

People fleeing Russia's invasion of Ukraine gather at a train station before departing to Poland, in Lviv, Ukraine, March 15, 2022. REUTERS/Pavlo Palamarchuk 

Children are reflected in a window of a train compartment, while on their way to board a train to Berlin at the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 15, 2022. REUTERS/Fabrizio Bensch 

Refugees sit inside a train to Berlin at the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 15, 2022. REUTERS/Fabrizio Bensch 

Refugees sit inside a train to Berlin at the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 15, 2022. REUTERS/Fabrizio Bensch 

A child looks on as people wait outside an immigration office after fleeing from Ukraine to Belgium, following Russia's invasion of Ukraine, in Brussels, Belgium March 15, 2022. REUTERS/Yves Herman 

People wait outside an immigration office after fleeing from Ukraine to Belgium, following Russia's invasion of Ukraine, in Brussels, Belgium March 15, 2022. REUTERS/Yves Herman 

A Spanish taxi driver holds a Ukrainian girl near taxis, in front of the reception center for refugees, following the Russian invasion of Ukraine, in Nadarzyn, Poland, March 14, 2022. Picture taken March 14, 2022. REUTERS/Kacper Pempel 

A mother gestures in front of her crying child, as people wait outside an immigration office after fleeing from Ukraine to Belgium, following Russia's invasion of Ukraine, in Brussels, Belgium, March 14, 2022. REUTERS/Johanna Geron 

People wait outside an immigration office after fleeing from Ukraine to Belgium, following Russia's invasion of Ukraine, in Brussels, Belgium, March 14, 2022. REUTERS/Johanna Geron 

A child stands next to a fence, as people wait outside an immigration office after fleeing from Ukraine to Belgium, following Russia's invasion of Ukraine, in Brussels, Belgium, March 14, 2022. REUTERS/Johanna Geron 

A baby looks out of a bus going to Poland, as people queue after fleeing the ongoing Russian invasion, outside the main train station in Lviv, Ukraine, March 14, 2022. REUTERS/Kai Pfaffenbach 

Aleksandra Lavrinets, 8, watches a cartoon on her mother's phone at the train station, while bound for Bucharest after fleeing Kyiv in Ukraine through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania, March 14, 2022. REUTERS/Clodagh Kilcoyne 

Yeva Zaichenko, 4, rests on her mother's suitcase at the train station, while bound for Budapest after fleeing Kyiv in Ukraine through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania, March 14, 2022. REUTERS/Clodagh Kilcoyne 

Aleksandra Lavrinets, 8, watches a cartoon on her mother's phone at the train station, bound for Bucharest after fleeing Kyiv in Ukraine through the Siret border crossing in Romania, following Russia's invasion of Ukraine, in Suceava, Romania, March 14, 2022. REUTERS/Clodagh Kilcoyne 

A boy plays with a balloon at a refugee shelter, after fleeing Russia's invasion of Ukraine, in Beregsurany, Hungary, March 14, 2022. REUTERS/Bernadett Szabo 

A mother plays with her daughter at a refugee shelter, after fleeing Russia's invasion of Ukraine, in Tiszabecs, Hungary, March 14, 2022. REUTERS/Bernadett Szabo 

A mother holds her baby at a refugee shelter, after fleeing Russia's invasion of Ukraine, in Tiszabecs, Hungary, March 14, 2022. REUTERS/Bernadett Szabo 

Ukrainian refugee Alina Shtuka, 6, from Prybuz'ke near Mykolaiv looks on in a tent for donated clothes near the main train station, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 14, 2022. REUTERS/Fabrizio Bensch 

Constantin Schwaab, CEO of Wirelane GmbH, speaks to a boy, who fled from Kharkiv, Ukraine, in Munich, Germany, March 14, 2022. The start-up company Wirelane GmbH hosts in its office players and family members of the Kharkiv Panthers, a female ice hockey team from Kharkiv, who fled to Germany amid Russia's invasion of Ukraine. REUTERS/Lukas Barth 

A woman pushes a stroller, as she arrives by ferry after fleeing from Russia's invasion of Ukraine, at the Isaccea-Orlivka border crossing, Romania, March 14, 2022. REUTERS/Stoyan Nenov 

Ukrainian refugees from Kyiv rest, at the historical train station building transformed to a temporary accommodation, after fleeing the Russian invasion of Ukraine in Krakow, Poland, March 14, 2022. REUTERS/Fabrizio Bensch 

A Ukrainian refugee sits while traveling on a train to Budapest after arriving from the border with Ukraine, fleeing the country following the Russian invasion, in Bucharest, Romania, March 13, 2022. REUTERS/Edgard Garrido 

A Ukrainian refugee sits next to his suitcase while traveling on a train to Budapest after arriving from the border with Ukraine, fleeing the country following the Russian invasion, in Bucharest, Romania, March 13, 2022. REUTERS/Edgard Garrido 

A child looks out from a window of a bus for refugees fleeing Russia's invasion of Ukraine, in Lviv, Ukraine, March 13, 2022. REUTERS/Pavlo Palamarchuk 

A child looks out from a window of a bus for refugees fleeing Russia's invasion of Ukraine, in Lviv, Ukraine, March 13, 2022. REUTERS/Pavlo Palamarchuk 

A child looks out from a window of a bus for refugees fleeing Russia's invasion of Ukraine, in Lviv, Ukraine, March 13, 2022. REUTERS/Pavlo Palamarchuk 

A child looks out from a window of a bus for refugees fleeing Russia's invasion of Ukraine, in Lviv, Ukraine, March 13, 2022. Picture taken through a glass window. REUTERS/Pavlo Palamarchuk 

A child fleeing from Ukraine sleeps inside a temporary shelter after Ukrainian refugees disembarked a train which brought them from the border after fleeing from Ukraine following the Russian invasion, in Bucharest, Romania, March 13, 2022. REUTERS/Edgard Garrido 

A man carries a baby during an evacuation, as Russia's invasion of Ukraine continues, in the town of Irpin outside Kyiv, Ukraine, March 13, 2022. REUTERS/Marko Djurica 

A Ukrainian refugee Timur, 4, from Zaporizhzhia who has nowhere to go and after arriving with his relatives by bus from Przemysl, poses for a photo at the International Youth Meeting Center, around two kilometres away from the former Nazi German Auschwitz-Birkenau death camp, where they are provided with temporary accommodation, in Oswiecim, Poland, March 13, 2022. REUTERS/Fabrizio Bensch 

A girl sits in a bus for internally displaced people after she was evacuated from a Russian controlled area in Brovary outside Kyiv as Russia's invasion of Ukraine continues, Ukraine, March 13, 2022. REUTERS/Thomas Peter 

Children play on a swing at a shelter for refugees in the Primary School No. 5, after fleeing Russia's invasion of Ukraine, in Przemysl, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

A child looks out from a bus window after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 13, 2022. REUTERS/Clodagh Kilcoyne 

A child sits on a swing at a shelter for refugees in the Primary School No. 5, after fleeing Russia's invasion of Ukraine, in Przemysl, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

A child plays with a toy at a shelter for refugees in the Primary School No. 5, after fleeing Russia's invasion of Ukraine, in Przemysl, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

A child sleeps at a shelter for refugees in the Primary School No. 5, after fleeing Russia's invasion of Ukraine, in Przemysl, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

People sleep at a shelter for refugees in the Primary School No. 5, after fleeing Russia's invasion of Ukraine, in Przemysl, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

A woman with a child looks on after she crossed the border from Ukraine to Poland, after fleeing Russia's invasion of Ukraine, at the border checkpoint in Medyka, Poland, March 13, 2022. REUTERS/Aleksandra Szmigiel 

Refugees from Krivoy Rog sit inside a car to be transported by German volunteers to Germany's Lower-Saxony state, where they'll be hosted, from a primary school transformed into temporary accommodation for people fleeing the Russian invasion of Ukraine, in Przemysl, Poland, March 12, 2022. REUTERS/Fabrizio Bensch 

Stanislav, 1, from Krivoy Rog, looks on before leaving a classroom of a primary school, transformed into temporary accommodation for people fleeing the Russian invasion of Ukraine, and be transported with other refugees to Germany's Lower-Saxony state where they'll be hosted, in Przemysl, Poland, March 12, 2022. REUTERS/Fabrizio Bensch 

A family walks after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 12, 2022. REUTERS/Clodagh Kilcoyne 

A child sits on a bus after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 12, 2022. REUTERS/Clodagh Kilcoyne