Al Jazeera's correspondent, James Bays, who is 9km from Ajdabiya, said that rebel fighters were attacked 800m from where they are stationed.
"Fighters gathered up there and one of their vehicles was hit ... all fighters fled that position and are now where I am, which is basically the front line," he said.
"Their vehicle was hit by tank round or a missile. I don't think anyone was hurt.
No one really is making any progress. The oppositon are where they were 24 hours ago ... They are lightly armed volunteers ... a professional officer on the rebel side told me they're very brave but to the point of being suicidal.
"Gaddafi forces are much more heavily armed. The opposition have the numbers and they seem to have the momentum but on the other side the Gaddafi forces have the power."