article_snippet.sent: Rome (CNN)Muslims who were among migrants trying to get from Libya to Italy in a boat this week threw 12 fellow passengers overboard -- killing 12 fellow passengers -- because the 12 were Christians, Italian police said Thursday.
article_snippet.sent: Italian authorities have arrested 15 people on suspicion of murdering the Christians at sea, police in Palermo, Sicily, said.
article_snippet.sent: Sometime during the trip north across the Mediterranean Sea, the alleged assailants -- Muslims from the Ivory Coast, Mali and Senegal -- threw the 12 overboard, police said.