African Union mediators have left Mauritania for Libya to attempt to negotiate a ceasefire.
Presidents Mohamed Ould Abdel Aziz of Mauritania, Amadou Toumani Toure of Mali, Denis Sassou Nguesso of Congo and Jacob Zuma of South Africa, left mid-morning, travelling separately to Tripoli, then Benghazi.
"They have just left, each in his own plane," a Mauritanian official told AFP.
Meanwhile, Nabila Ramdani, a French journalist and Middle East expert,told Al Jazeera that she was questioning the AU's involvement in mediation.
Unfortunately, my view about the African Union is that it will appear as not being a credible group of people to be in a position to broker a deal on behalf of [Muammar] Gaddafi.
"They're a group of dictators themselves and they won't be taken very seriously given that they're from very brutal regimes which are in many ways far worse than the Gaddafi regime."