SAN BERNARDINO, Calif. (AP) — One motorcyclist was killed and another was wounded early Friday when they were shot on a Southern California freeway while wearing the insignia of a motorcycle gang, police said.

A group of three motorcyclists, including the two victims, was riding on State Route 210 in San Bernardino when one had mechanical trouble, prompting them to pull into the center median, said Lt. Mike Madden, a police spokesman.

Investigators believe they were stopped for less than five minutes when shots were fired, he said.

Shawn Fowler, 44, of Utah was killed and a second man was wounded. Fowler's wife, who was the third person in the group, was not struck by the gunfire.

Detectives are still trying to figure out whether the gunshots came from a passing vehicle.

The freeway was closed for several hours.