A driver was caught on camera slumped over asleep in his pickup truck causing a traffic jam on a busy Atlanta highway when he suddenly woke up, then crashed his truck into several vehicles before fleeing the scene.

The bizarre scene happened Saturday afternoon on the Buford Connector near downtown Atlanta, causing massive backups during the entire incident.

WSB-TV's Liz Artz was on the scene and called 911 when she and her photographer came across the man behind the wheel. The truck was stopped in a lane of traffic and was still running. The man sat slumped over, drooling.

A Georgia Department of Transportation HERO unit arrived and tried to revive the man and remove the keys from the ignition. The driver awoke, scuffled with a HERO worker and sped off, nearly hitting the HERO worker. The truck then smashed into two cars, causing a chain reaction that resulted in a five-car accident.

But it wasn't over yet. Atlanta police had still not arrived to the scene when the HERO worker made one more attempt to stop the man. He managed to get the key out of the truck, but the driver was able to flee.

Video shows the man climb a tree and jump a barbed wire fence. Police arrived a short time later. They have still not found the driver.

No one was seriously injured in the accident.