Europe migrant crisis in pictures.
Europe Migrant Crisis - Sept. 3, 3015

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Migrants sleep near the Keleti railway station in Budapest, Hungary, Sept. 3, 2015.

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Migrants rescued off the Libyan coast celebrate on the deck of the Siem Pilot Norwegian ship upon their arrival at the Italian port of Cagliari, Sept. 3, 2015.

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Syrian and Afghan refugees on a dinghy wave as they approach the Greek island of Lesbos, Sept. 3, 2015. The International Organization for Migration (IOM) says 1,500-2,000 are taking the route through Greece, Macedonia and Serbia to Hungary every day and that there is "a real possibility" the flow could rise to 3,000 daily.

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A helper distributes fruit to migrants in front of the State Office for Health and Social Affairs (LaGeSo), in Berlin, Germany, Sept. 3, 2015.