The EU's anti-smuggling operation enters its second phase.
About 500 people were on board two sinking ships.
More than 2,300 people have died this year in attempts to reach Europe by boat.
More than 50 people were found dead on the boats, the Italian coast guard said.
The migrants were found during a rescue operation which saved 430 other people, the Italian coast guard said.
Around 600 people were onboard the vessel, which went down 15 nautical miles off the coast.
Libyan Court Sentences Muammar Gaddafi's Son, Saif al-Islam Saif, and Eight Other Ex-Officials to Death
Defendants had been accused of a range of offenses including the use of deadly force against unarmed demonstrators, as well as corruption.
Belmokhtar has been reported dead several times only to reappear in jihadist propaganda claiming responsibility for new attacks.
Derna militia threatens to wipe out terror group after senior leader killed in clashes.
Both of them worked as doctors.
The children were killed on Tuesday when a rocket hit their neighborhood, near an area where army forces and Islamist brigades have been fighting
Seven bodies found on two boats packed with migrants, and three corpses plucked from the sea.
900 people drowned crossing the Mediterranean last week as EU leaders step up efforts to destroy traffickers' vessels.
Officials call on the international community to help as refugee numbers in Turkey set to hit 2.5 million.
The group have publicly crucified a family in Libyan town ahead of the forced pledge, according to sources.
EU leaders agree to triple naval search mission in Mediterranean following drowning of 900 people in past week.
No reported casualties in latest of embassy attacks in Libya, following assaults on South Korean and Moroccan embassies.
Three other rescue operations underway on Monday as EU ministers present plan to double funding for Triton operation.
Explosion damages Moroccan embassy in Tripoli the day after gunmen kill two in attack on South Korean mission.
Ansar al-Sharia's spiritual leader defects to ISIS in bid to influence fellow North African jihadis.
The terror group write about Boko Haram, Libya and Tunisia in the new publication of Dabiq.
Ahead of sanctions review in June, minister says Libya must be considered as equal a threat to Ukraine.
Fighting between IS and Libya Dawn has forced civilians to flee to Misrata.