Two sons of Libyan leader Col. Muammar Gaddafi have issued conflicting statements on the status of their embattled regime. In telephone calls made to Arab television stations within minutes of one another, a man claiming to be Gaddafi’s son Al-Saadi said forces loyal to his father were prepared to negotiate with Libya’s rebel opposition, while a man who identified himself as Gaddafi’s son Saif al-Islam urged Libyans to continue fighting. Rebel forces are closing in on three pro-Gaddafi strongholds where they believe Muammar Gaddafi himself may be hiding. Rebel fighters have given Gaddafi and his loyalists until Saturday to lay down their arms or face intensified military action.