Women and children, many of them from the besieged city of Kharkiv, rest in a waiting hall at Lviv train station.

People show their documents to the military before boarding a train bound for Poland from Lviv station.

Volunteers help people board a train bound for Poland from Lviv station.

A child in the doorway of a packed carriage on a train bound for Poland from Lviv station.

A woman sits in the doorway of a packed carriage on a train bound for Poland from Lviv station.

A woman and man help each other negotiate a flight of stairs as a train full of passengers crowd into Lviv train station after arriving from Kiev (Kyiv).

A crowd forms at Lviv train station after a train brought thousands of people fleeing from Kiev (Kyiv).

A train full of passengers crowd into Lviv train station after they arrived from Kiev (Kyiv).

Olena Tuliakova kisses her son Ilya after arriving into Lviv train station having escaped from the besieged city of Kharkiv in eastern Ukraine.

A train full of passengers crowd onto a platform at Lviv train station after they arrived from Kiev (Kyiv).

A man carries a baby wrapped up against the cold as a train full of passengers crowd onto a platform at Lviv train station after they arrived from Kiev (Kyiv).

A train full of passengers cross the tracks at Lviv train station after they arrived from Kiev (Kyiv).

A train full of passengers cross the tracks at Lviv train station after they arrived from Kiev (Kyiv).

Large queues formed as people arrive into and wait to depart from the central train station.

Large queues formed as people arrive into and wait to depart from the central train station.