Luck? Libyan Rebels Shoot Down Fighter Jet Using Partially-Broken Anti-Aircraft Gun

It could be luck or good shooting, but either way it's embarrassing for Libyan President Moammar Gadhafi. Rebels near the city of Ras Lanuf shot down a Libyan Air Force fighter plane using a anti-aircraft gun with only one barrel operational. Making matters worse for Gadhafi, it was the man behind the gun's first day:

CNN provides more crash-scene footage:

The small victory comes as rebel forces begin marching toward the capital city of Tripoli. Libyan helicopter gunships fired on a rebel force advancing west toward the capital along the Mediterranean coastline Sunday and forces loyal to leader Moammar Gadhafi fought intense ground battles with the rival fighters.

The opposition force pushed out of the rebel-held eastern half of Libya late last week for the first time and has been cutting a path west toward Tripoli. On the way, they secured control of two important oil ports at Brega and Ras Lanouf and by Sunday, the rebels were advancing farther west when they were hit by the helicopter fire and confrontations with ground forces.

The uprising against Gadhafi, which began just days after President Hosni Mubarak was ousted by protesters in neighboring Egypt, has been sliding rapidly toward civil war, making it the bloodiest episode in the Middle East's wave of unrest.

The Associated Press contributed to this report.