The military leader of the Libyan rebels, General Abdul Fattah Younis, confirmed in a television interview that his forces had received weapons from allied countries, dpa reported.
But Younis did not tell satellite broadcaster Al-Aan details about where the weapons had come from, saying only that they had received light weapons from friendly nations.
"That is not enough," he said, calling on NATO to make an exception to its enforcement of a no-fly zone over Libya to allow rebels to attack troops controlled by leader Moamer Gaddafi with their own planes.
He had earlier criticized NATO for not being quick enough with airstrikes against Gaddafi's forces.
Younis, a former Gaddafi interior minister, left the regime to join with the rebels.