Libyan state television has broadcast an appearance by leader Muammar Gaddafi before crowds in Tripoli's Green Square.<br /><br />Pro-government supporters also rallied in the capital on Sunday.<br /><br />Pictures have also emerged of fighting in the Libyan town of Misurata.<br /><br />Opposition fighters also say they have repelled an attack by government forces, including tanks and artillery.<br /><br />At least 18 people were killed.<br /><br />Al Jazeera Charles Stratford reports on the fighting seen across the country.
