Anti-Gaddafi forces have called on the international community to impose a no-fly zone across Libya.
The national Libyan council set up by the rebels now controls large swathes of the country, especially in the east.
But, fears have been expressed Gaddafi warplanes will be used to target civilians and key sites.
Speaking on behalf of the rebels Colonel Abd Alah El Mahdy El Zayde said: “Entry into the east of Libya will be impossible for Gaddafi’s forces. Because everyone here is ready to die for the liberation of our cities and regions from Gaddafi’s forces. The international community must impose a no-fly zone, not because we’re afraid for our city (Benghazi) but we fear he may attack other cities and all oil refineries, so they must immediately impose a no-fly zone to weaken him.”
The opposition insists that it is becoming more organised. Large numbers of Libyans are reportedly joining up to fight the rebel cause.