Scenes of joy as Libya rebels enter central Tripoli

A convoy of Libyan rebels has rolled into central Tripoli past celebrating crowds after a day of heavy fighting in and around the capital.

Crowds cheered them, waving flags and firing salutes.

The rebels also said they had captured Col Gaddafi's son Saif al-Islam, but there was no word of the colonel's whereabouts.

James Robbins reports.