Fighting between government forces and tribal fighters in the southern Libyan town of Kufra has continued for a second day.

At least 16 people have died since the clashes began on Saturday, with women and children among the dead.

Libya's government has been struggling to maintain security since the ousting of Muammar Gaddafi last year.

Meanwhile, officials said an election planned for later this month has been postponed to 7 July.