Surviving immigrants lie on the deck of the Italian coastguard ship Bruno Gregoretti in Senglea, in Valletta's Grand Harbour April 20, 2015. The Italian patrol ship arrived in Malta on Monday with 24 corpses recovered out of hundreds feared drowned after a migrant boat capsized in the Mediterranean, in one of the worst disasters yet in a growing humanitarian crisis. The death toll from Sunday's shipwreck off the coast of Libya was uncertain after officials said there had been at least 700 people on board, some reportedly locked in the hold. [Photo/Agencies]