An international migration group says more than 300 people are believed to have drowned off the coast of Libya.
The International Organization for Migration says that Libyan officials reported between one and three ships sank in Libyan waters Monday.
Spokesman Jean-Philippe Chauzy says the group has confirmed the information with diplomatic sources.
He says strong winds could have caused the vessels to capsize. IOM says it believes the migrants were trying to cross from North Africa to Italy.