The Libyan government is denying its forces have breached its ceasefire despite the latest pictures from the rebel stronghold of Benghazi.
The video, filmed on Saturday, appears to show a fighter plane falling from the sky, and then a column of balck smoke rising.
As well as the air attacks the insurgents say there have been running skirmishes with government forces on the ground.
There have also been claims that the town of Misrata came under attack, again after the ceasefire.
The claims cannot be verified at present and the Libyan government is denying any such attacks.
The announcement of a ceasefire by Libya’s Foreign Minister on Friday was unequivocal and was due to take effect immediately. But while it was welcomed those countries responding said they would treat it with caution and see what happens on the ground.
In the capital Tripoli Gaddafi supporters demonstrated in support of their leader on Friday.
In celebratory and defiant mood they chanted and held up banners scathing of the UN resolution, with France as one of their main targets for derision.