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Open Image ModalMigrants crowd an inflatable dinghy as a rescue vessel of the Italian Coast Guard approaches them off the Libyan coast, April 22, 2015. (credit:Alessandro Di Meo/ANSA via AP Photo)
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Open Image ModalMigrants crowd an inflatable dinghy as a rescue vessel of the Italian Coast Guard approaches them, off the Libyan coast, April 22, 2015. (credit:Alessandro Di Meo/ANSA via AP Photo)
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Open Image ModalRescued migrants disembark off the Italian Guardia Costiera vessel Fiorillo at the Sicilian harbour of Catania on April 24, 2015. (credit:ALBERTO PIZZOLI/AFP/Getty Images)
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Open Image ModalMigrants wait to disembark from the Italian Coast Guard ship Fiorillo, at the Catania harbor, Sicily, April 24, 2015. (credit:AP Photo/Alessandra Tarantino)
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Open Image ModalMigrants wait to disembark from the Italian Coast Guard ship Fiorillo, at the Catania harbor, Sicily, April 24, 2015. (credit:AP Photo/Alessandra Tarantino)
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Open Image ModalPeople lay candles at a vigil in Sliema, on the outskirts of Valletta, Malta, April 22, 2015. (credit:AP Photo/Alessandra Tarantino)
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Open Image ModalMigrants crowd an inflatable dinghy as a rescue vessel of the Italian Coast Guard approaches them off the Libyan coast, April 22, 2015. (credit:Alessandro Di Meo/ANSA via AP Photo)
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Open Image ModalFishermen look at the wreckage of a boat which was carrying dozens of immigrants in the eastern Aegean island of Rhodes, Greece. (credit:AP Photo//Nikolas Nanev)
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Open Image ModalPeople pause by the sea during a candle-lit vigil in Sliema, on the outskirts of Valletta, Malta, April 22, 2015. (credit:AP Photo/Alessandra Tarantino)
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Open Image ModalMigrants from Nigeria relax by the sea after taking a swim on April 22, 2015 in Lampedusa, Italy. (credit:Dan Kitwood/Getty Images)
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Open Image ModalEric Joseph, 27, a migrant from Nigeria stands in a \'boat graveyard\' by the port on April 22, 2015 in Lampedusa, Italy. (credit:Dan Kitwood/Getty Images)
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Open Image ModalAmnesty International volunteers lie in a body bags on the beach on April 22, 2015 in Brighton, England. (credit:Peter Macdiarmid/Getty Images)
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Open Image ModalA boy who was on board a boat carrying migrants which ran aground off the island of Rhodes, hugs a relative outside a Greek Coast Guard office at the southeastern island of Rhodes, April 22, 2015. (credit: AP Photo/Yorgos Karahalis)
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Open Image ModalAn asylum seekers holds a paper boat, with words written in Italian that read, \'Too many deaths, it is not good\' during a demonstration in front of the Italian parliament in Rome, on April 23, 2015. (credit:GABRIEL BOUYS/AFP/Getty Images)
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Open Image ModalMaltese soldiers carry a coffin of a baby during the funeral of 24 migrants who died after a fishing boat carrying migrants capsized off the Libyan coast, on the helipad at Mater Dei Hospital in Malta, on April 23, 2015. (credit:Matthew Mirabelli/AFP/Getty Images)
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Open Image ModalAsylum seekers living in Malta arrive at an interfaith funeral ceremony of 24 migrants on the helipad at Mater Dei Hospital in Malta on April 23, 2015. (credit: Matthew Mirabelli/AFP/Getty Images)
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Open Image ModalMigrants wait to disembark from the Italian Navy vessel \'Chimera\' in the harbor of Salerno, Italy, April 22, 2015. (credit:AP Photo/Francesco Pecoraro)