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NBC Los Angeles - Video depicting a confrontation involving four men on a Southern California freeway has prompted an investigation by the California Highway Patrol.

CHP officials conducted a brief news conference Wednesday at 7 a.m. regarding the video, captured by a passing motorist. CHP officials have talked with one of the individuals seen in the video, but they are attempting to identify the other individuals.

In the video, a motorist with the camera slowed to a stop next to four men standing outside their vehicles on the freeway. The men appeared to be involved in an argument before a fight ensued.

One of the men was thrown to the ground before two men appeared to kick him in the head. Someone can be heard yelling, “Hey, get the license plate” as the three assailants fled in a black Volkswagen Jetta.

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