BBC News with Gaenor Howells

The Libyan leader Muammar Gaddafi has addressed supporters massed in a central square in the capital Tripoli. State television showed him speaking from the old city walls and denouncing foreign interference. He urged the crowd to arm themselves and defend the nation and its oil against anti-government protesters who've taken control of large parts of the country. At one point, Colonel Gaddafi said he didn't intend to resign.