Benghazi: A Libyan rebel commander said Saturday that his forces have unconfirmed reports that Nato struck and destroyed a caravan of camels carrying weapons from neighbouring Chad.

Abdullah Aitha, who commands rebels fighting in the southeastern Kufra region, said the caravan was made up of hundreds of camels and carried heavy calibre machine guns, mortars and ammunition.

He said the air strike came on Friday evening in a desert 100km from the Chad border while the caravan was headed for the city of Sebha, 650km south of the capital Tripoli. Sebha is a key Gaddafi stronghold deep in the country's southwestern deserts where much of the Libyan leader's loyal troops hail from.

"The camels are totally burned and the weapons are all destroyed," he told The Associated Press.

Nato could not be immediately reached for comment.

Earlier on Friday, a rebel commander said his forces had also received unconfirmed reports that Muammar Gaddafi's youngest son has been killed in a Nato air strike on Friday on the western town of Zlitan.

Mohammad Al Rijali in the rebel's de facto capital of Benghazi said that Khamis Gaddafi was among 32 troops killed in a Nato strike on a government operations centre in Zlitan.

But in Tripoli, Deputy Foreign Minister Khalid Kaim said Khamis is alive.