At least 65 migrants have died after their boat capsized in the Mediterranean off the coast of Tunisia, the UN refugee agency says.
The UN-backed PM of Libya has condemned the "silence" of his international allies as opposing forces advance on the capital Tripoli.
Heavy fighting has erupted south of Tripoli after Libya's UN-backed government announced a counter-offensive against insurgent forces.
Khalifa Haftar has been part of the Libyan political scene for more than four decades, shifting from the centre to the periphery and back again as his fortunes changed.
Islamic State group militants say they were behind a Saturday attack on a training camp for the forces of Libyan military strongman Khalifa Haftar.