"Victims in the whole country were 6,000," Ali Zeidan told reporters in Paris, adding that this included 3,000 in the capital Tripoli, 2,000 in the rebel-held second city Benghazi and 1,000 in other cities.
"This is what people told us, but it can be more," he added.
Diplomats have said that between 1,000 and 2,000 people have been killed in the rebellion, although precise figures are hard to come by because of the situation on the ground.
Zeidan said there were thousands of mercenaries deployed in Libya, including 3,000 in Tripoli and 3,000 just outside it, allegedly being commanded by officers from Libya`s southern neighbour, Chad. (M014/K004)