340 migrants 'dead or missing' in Mediterranean shipwrecks

About 340 migrants have died or gone missing in four Mediterranean Sea shipwrecks over the past two and a half days, a migration organisation says.

Flavio Di Giacomo, Italy spokesman for the International Organisation for Migration, said that brings to over 4,500 the number of migrants who have died or disappeared so far this year making the risky sea voyage, the deadliest year on record.