A TV anchor said the images, which showed a man with a striking resemblance to Khamis Qaddafi, refuted reports in the Arab media and on the Internet that he was killed by a disaffected air force pilot who flew his plane into Qaddafi’s Tripoli compound.

Libyan officials say such reports are part of a deliberate campaign of misinformation by the country’s enemies.

Khamis is the commander of the military’s elite 32nd brigade, seen by many analysts as the best-trained unit in Libya.

The televised footage showed a man in military uniform standing in the back of a heavily guarded pickup truck that drove through the Bab Al-Aziziyah compound. He waved to supporters and bodyguards tried to prevent some from getting too close.

Separately, Tunisia’s official TAP news agency said Libyan Foreign Minister Moussa Koussa had crossed the border into Tunisia on Monday afternoon, quoting its own correspondent and a security source at the main transit point of Ras Jdir.

It quoted a source at the Tunisian Foreign Ministry as saying his visit was “private ... not official.”