Watch: Commuters Come to Blows in Middle of Hollywood Traffic

— -- A typical morning commute in Hollywood, California, erupted into a dangerous, knock-down brawl in the middle of traffic recently and it was all caught on tape.

The cellphone video — taken by an eyewitness who asked not to be identified — shows two men arguing from their vehicles and then finally jumping out of their cars and throwing punches at each other.

"I see driver-to-driver screaming altercations at least a couple of times a week," the eyewitness told ABC News today. "This is the first time I've ever seen two guys get out of the car."

He said the incident occurred on Highland Boulevard between Hollywood and Sunset Boulevards, around 9:25 a.m. Monday. He said the two men had been exchanging words regarding a lane merger as they drove behind his car. He said the arguing went on for 10 minutes.

"They were screaming profanities at each other," he said.

Then the two men drove around his car, stopped and jumped out, with their engines still running, in front of a high school. Nearby, the eyewitness said a traffic officer with the Department of Transportation called for backup. The eyewitness said that he did not see the cars hit each other and that he did not who was actually at fault.

"It happened so fast," he said.

At one point during the fight, one of the drivers nearly got clipped by a van traveling in oncoming traffic. Still the two men continued fighting. Eventually, he said, the men stopped brawling, got into their cars and drove off but not before two other men watching the fight from the sidewalk tried to intervene.

According to ABC News affiliate KABC-TV, the traffic officer was unable to get the license plate numbers from the cars involved. The police said that no one had filed a police report but that it was looking for witnesses to come forward with information. The eyewitness told ABC News today that the incident was "scary" and "hard to witness."

"This is definitely the first time I've ever seen it taken to this level," he said. "Obviously in Los Angeles, you never know who you're dealing with."