Libya: Net closes in on pro-Gaddafi stonghold of Sirte

Armed forces loyal to Libya's National Transitional Council have surrounded Colonel Gaddafi's home town of Sirte, one of the fugitive leader's few remaining strongholds.

The pro-NTC soldiers launched a surprise attack on the city at the weekend.

The BBC's Alastair Leithead, who is travelling with the NTC forces, reports from inside the boundary of Sirte.