Benghazi, Libya: Libyan rebels were on Saturday probing the death of their army chief General Abdel Fatah Yunis, a murder the Gaddafi regime blamed on Al Qaeda, as NATO warplanes targeted the strongman's "terror broadcasts."

"The NTC has appointed an investigative committee and we will publish all the facts of this investigation," said Ali Tarhuni, who handles economic affairs for the rebel National Transitional Council.

Yunis was the faithful right-hand man of Libyan leader Muammar Gaddafi, participating in the 1969 coup that brought him to power, before defecting to the rebels who have been fighting to oust the strongman since February.

Tarhuni said Yunis's bullet-ridden and partly burned body was found early on Friday on Benghazi's outskirts, but that the NTC had received news of his death late on Thursday when the head of a militia behind the crime confessed.

"The head of the militia is imprisoned now," Tarhuni said, adding that some of the perpetrators, who he said belonged to Jirah Ibn al-Obeidi brigade, were yet to be incarcerated, and the motive for the killing remained unclear.

"We don't know who they work for," he said.