Libya: Tight security after Tripoli unrest

Forces of the new Libyan government have stepped up security in the capital Tripoli, a day after clashes with armed supporters of Colonel Gaddafi.

Abdulla Naker of Tripoli's Revolutionary Council told reporters: ''We will clean up all of Tripoli's neighbourhoods.''

Meanwhile, fighting continues in the former Libyan leader's hometown of Sirte.

The BBC's Daniel Griffiths reports.