One person has died in a gun battle near the international airport in the Libyan capital, Tripoli, between a brigade calling itself "Libya's National Army" and former rebels who control the airport. <br /><br />The clashes came on the same day as the country's governing National Transitional Council (NTC) held its first conference on national reconciliation.<br /><br />The NTC has given armed groups in Tripoli until December 31 to disarm and leave the city. <br /><br />The violence underlines the challenges the new leaders face to stamp their authority on the various armed groups that helped overthrow Muammar Gaddafi.<br /><br />Al Jazeera's Sophie Jackson reports from Tripoli.