Libya seeks ceasefire as south Tripoli a militia 'war zone'

TRIPOLI (Reuters) - Black plumes of smoke marked shell blasts and bulldozed earthen barricades mapped out the frontlines around Tripoli's largest airport, now at the heart of a standoff between the country's powerful militias.

With barrages of Grad rockets, anti-aircraft guns and artillery fired at their rival enclaves just kilometers apart, brigades of former rebels have turned parts of southern Tripoli in a battleground for nearly a fortnight.