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Fierce fighting near Tripoli as rebels close in

27 June 2011 Last updated at 10:52 BST

Rebel forces in Libya have clashed with troops loyal to Col Muammar Gaddafi about 80km (50 miles) south-west of the capital, Tripoli.

A rebel spokesman in the Nafusa mountains said there had been heavy fighting on the outskirts of the strategic town of Bir al-Ghanam.

Mark Doyle reports from the mountains of western Libya.