An air strike hit a detention centre for mainly African migrants in a suburb of the Libyan capital Tripoli late on Tuesday, killing at least 44 people and wounding more than 130, the United Nations said.
A charity rescue vessel carrying 311 mainly African migrants plucked off Libya docked in Spain on Friday, ending a traumatic journey which saw them spend Christmas at sea and several European nations denying the ship entry.
Libya is a major departure point in North Africa for migrants crossing the Mediterranean Sea to Europe, mainly from other parts of Africa.
Dozens of Africans say they were sold for labour and trapped in slavery in Algeria in what aid agencies fear may be a widening trend of abusing migrants headed for a new life in Europe.
Israeli Prime Minister Benjamin Netanyahu said on Tuesday he was cancelling an agreement with the UN refugee agency to relocate thousands of African migrants, bowing to right-wing pressure to scrap the deal.
The United Nations on Tuesday called on Israel to scrap a new programme forcing thousands of African migrants out of the country, condemning it as incoherent and unsafe.
At least eight African migrants, and possibly as many as 27, died in a new boat tragedy off the coast of Libya, a search and rescue organisation said Monday.