Muammar Gaddafi's forces pounded Misrata - the only western city still in rebel hands - with rocket fire as weary residents who have endured more than a month of fighting lashed out at Nato for failing to halt the deadly assault.

The Tunisian army fired warning shots in the capital today as demonstrators marched toward the ruling party’s headquarters and government ministers quit the party in a desperate attempt to keep their jobs.

A ship carrying dozens of illegal immigrants capsized off Tunisia, killing at least 17 people. Another 47 were reported missing.