In Pictures: A Look at Europe migrant crisis.
Europe Migrant Crisis - Sept. 16, 2015
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Migrants make their way through fields at the border between Serbia and Croatia near Tovarnik, Croatia. The first groups of migrants have started arriving in Croatia - a new entry point into the European Union after Hungary sealed off its border with Serbia with massive coils of barbed wire.
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Croatian police detain a group of migrants in Tovarnik after they crossed from neighboring Serbia.
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Migrants walk towards Germany at the border crossing with Austria in Freilassing, Germany. Germany cut its train link with the Austrian city of Salzburg, shutting down the main route into its territory for tens of thousands of people caught in Europe's worst migration crisis in decades.
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A street artist entertains in the compound outside the Berlin Office of Health and Social Affairs (LaGeSo) as they wait for their registration in Berlin, Germany.