Photos: More than 1.5 million Ukrainians have fled their country

The United Nations refugee agency says Russia's invasion of Ukraine has already prompted more than 1.5 million people to flee the war. This is the fastest-growing refugee crisis in Europe since World War II.

Just 11 days into the war, Ukrainians continue to flow into Poland and other neighboring countries.

The majority, more than 800,000, have crossed into Poland.

Take a look.

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