At least 36 people perished after the boat sank on Friday, a week after another shipwreck off Italy left at least 359 dead, prompting Malta to warn that the Mediterranean was becoming "a cemetery".
The boat, carrying up to 400 migrants, mostly Syrians, left the Libyan port of Zwara on Thursday, just 60 kilometres (37 miles) from the Tunisian border.
Some of the more than 200 survivors said Libyan militiamen shot wildly at them, leaving several people dead and causing the vessel to take on water and sink.
The boat, carrying up to 400 migrants, mostly Syrians, left the Libyan port of Zwara on Thursday, just 60 kilometres (37 miles) from the Tunisian border.
Some of the more than 200 survivors said Libyan militiamen shot wildly at them, leaving several people dead and causing the vessel to take on water and sink.
