Anti-Gaddafi forces in Libya say they have now entered Bani Walid, one of the last remaining loyalist strongholds. Bani Walid and three other loyalist-held towns had been given till Saturday to surrender but the anti-Gaddafi forces said they had come under attack. Fierce fighting has also been reported close to the Gaddafi-held city of Sirte. Meanwhile, the International Criminal Police Organization, Interpol, issued arrest warrants for Gaddafi, his son Saif, and the former head of Gaddafi's intelligence agency. Marco Werman gets the latest from the BBC's Jon Leyne in Bengazi, Libya.