More than half-a-million people have fled Ukraine since the Russian invasion, according to the UN.
At the train station in Lviv, in western Ukraine, women and children wait to board the train to Poland.
Ukrainian men, unable to leave the country, say goodbyes to wives and children who are being evacuated.
Also caught up in the rush to leave Ukraine are foreign nationals, many students, who have been caught in a war zone far from home and with little support.
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