A young woman looks on as refugees wait to board trains and buses at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 1, 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A young girl gives a thumbs up as Ukrainian refugees board a train bound for Przemsyl, Poland from the Lviv Railway Station on March 15, 2022 in Ukraine.

A mother and daughter make a heart shape from a train bound for Poland as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A Ukrainian woman and child look from a train car window bound for Przemsyl, Poland from the Lviv Railway Station on March 15, 2022 in Ukraine.

A mother and son look out from a train window as they move from Ukraine to another part of Poland from Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A Polish officer hands a candy to a child as refugees wait to board trains and buses at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 1, 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A young boy looks on as refugees wait to board trains and buses at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 1, 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees sit on a train at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 1, 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

An abandoned stroller sits in a field as refugees cross the border from Ukraine on March 01, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

Refugees cross the border from Ukraine on March 01, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

Refugees use phones after crossing the border from Ukraine on March 01, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

Refugees walk along a road after crossing the border from Ukraine on March 2, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

Refugees walk along a road after crossing the border from Ukraine on March 2, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

A woman embraces a man after crossing the border from Ukraine on March 2, 2022 in Medyka, Poland. According to the United Nations, Poland has so far received at least 281,000 refugees from Ukraine since Russia invaded on February 24. Meanwhile, battles are raging across Ukraine between Ukrainian armed forces and the invading Russian army.

A Ukrainian man waits to board a train back to Ukraine from Poland to fight for his country, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees wait to pass through customs after arriving by train at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees wait to pass through customs after arriving by train at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees wait to pass through customs after arriving by train at Przemysl station, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A woman look at her phone while another has something to eat after arriving by train to Przemysl station, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees sit on mattresses in an abandoned mall being used as a shelter while waiting for transit elsewhere, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A woman looks at her phone while sitting in an abandoned mall being used as a shelter while waiting for transit elsewhere, six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A young boy looks from a bus window in the parking lot of an abandoned mall as refugees move from Ukraine to Poland six days after the start of Russia's attacks on Ukraine, March 2 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees arrive by train from Ukraine to Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A man and woman are reunited as refugees arrive by train from Ukraine to Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

People look through a fence for family members as refugees arrive by train from Ukraine to Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

A woman looks through a fence for family members as refugees arrive by train from Ukraine to Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Refugees arrive by train from Ukraine to Przemysl station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Ukrainian refugees sit in Przemysl train station a week after the start of Russia's attacks on Ukraine, March 3 2022, in Przemysl, Poland. Przemysl station has become a safe haven for thousands of people fleeing the war that Russia launched against Ukraine on February 24. This city, located in southeastern Poland, borders Ukraine and is being used by refugees to escape the war in their country.

Ukrainian refugee families wait at a hall after arriving at the main railway station in Krakow as more than million people already fled Ukraine for Poland on March 10, 2022. As the Russian Federation invaded Ukraine, the conflict between Ukraine and Russia is expected to force up to 5 million Ukrainians to flee the country. Many of the refugees will seek asylum in Poland.

Ukrainian refugee families wait at a hall after arriving at the main railway station in Krakow as more than million people already fled Ukraine for Poland on March 10, 2022. As the Russian Federation invaded Ukraine, the conflict between Ukraine and Russia is expected to force up to 5 million Ukrainians to flee the country. Many of the refugees will seek asylum in Poland.

Ukrainian refugee families wait at a hall after arriving at the main railway station in Krakow as more than million people already fled Ukraine for Poland on March 10, 2022. As the Russian Federation invaded Ukraine, the conflict between Ukraine and Russia is expected to force up to 5 million Ukrainians to flee the country. Many of the refugees will seek asylum in Poland.

Ukrainian refugees arrive at Lviv Railway Station as many people flee to neighboring countries amid the Russian invasion, in Lviv, Ukraine on March 12, 2022.

A Ukrainian soldier fists bumps a supporter after saying goodbye to his girlfriend at at Lviv Railway Station in Ukraine on March 12, 2022.

A mother and son wait on a train platform as Ukrainian refugees arrive at Lviv Railway Station as many people flee to neighboring countries amid the Russian invasion, in Lviv, Ukraine on March 12, 2022.

A woman looks from a train car as Ukrainian refugees arrive at Lviv Railway Station as many people flee to neighboring countries amid the Russian invasion, in Lviv, Ukraine on March 12, 2022.

Ukrainian refugees board a train at Lviv Railway Station as many people flee to neighboring countries amid the Russian invasion, in Lviv, Ukraine on March 12, 2022.

A woman holds her passport as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A woman holds a baby on a train bound for Poland as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A woman holds her children on a train bound for Poland as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A woman speaks on her cellphone to a family member on a train bound for Poland as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

Ukrainian railroad conductor looks on from a train car as refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

Ukrainian refugees walk across the tracks as they move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A Ukrainian man sits on a train bound for Kyiv from the Lviv Railway Station on March 14, 2022, as he is returning to Kyiv to fight against the Russian invasion. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A woman looks on while waiting to board a train for Poland as Ukrainian refugees move through the Lviv Railway Station on March 14, 2022. Over 2.5 million people have left Ukraine since the start of the Russian Invasion nearly three weeks ago.

A father waves to his wife and children as Ukrainian refugees board a train bound for Przemsyl, Poland from the Lviv Railway Station on March 15, 2022 in Ukraine.

A father blows a kiss to his wife and children as Ukrainian refugees board a train bound for Przemsyl, Poland from the Lviv Railway Station on March 15, 2022 in Ukraine.

A family sits together in Liviv photo studio being used as shelter for refugees from the invasion of Ukraine on March 16, 2022.

A family sits together in Liviv photo studio being used as shelter for refugees from the invasion of Ukraine on March 16, 2022.

A young girl looks at her phone while a woman speaks on her phone while staying at a Liviv photo studio being used as shelter for refugees from the invasion of Ukraine on March 16, 2022.

A woman plays with her daughter as Fabrik photo studio is now used as shelter for refugees from the invasion of Ukraine on March 16, 2022. Volunteers ensure refugees have shelter, clothing and food. Over three million refugees have fled Ukraine since the Russian invasion three weeks ago.

A mother and her child sit on a train bound for Poland as Ukrainian refugees move through the Lviv Railway Station on March 16, 2022. Over three million refugees have fled Ukraine since the Russian invasion three weeks ago.

A woman walks along a train platform as Ukrainian refugees move through the Lviv Railway Station on March 16, 2022. Over three million refugees have fled Ukraine since the Russian invasion three weeks ago.

Ukrainian refugees move through the Lviv Railway Station on March 16, 2022. Over three million refugees have fled Ukraine since the Russian invasion three weeks ago.