SAN JOSE — A driver shot at another motorist Thursday night after the two exchanged obscene gestures during a road-rage incident that started in Gilroy and ended on Highway 101 in San Jose, according to the California Highway Patrol.

The gunshots struck one of the vehicles, but the driver was not injured.

The incident started about 10 p.m. when a man driving a red Saab northbound on 101 from Gilroy was cut off by a black Hyundai, according to the CHP.

Upset, the male driver of the Saab pulled next to the Hyundai and gave the driver the middle finger. The driver of the Saab then pulled in front of the Hyundai and hit his brakes.

For the next 15 miles, the two drivers exchanged middle fingers and cut in front of the other driver and hit the brakes, according to CHP Officer Ross Lee.

The exchange continued until the driver of the Saab was about two miles away from Interstate 880, where he heard two loud pops and felt impacts to his car, Lee said. The man pulled over and noticed two bullet holes in his passenger side door. One of the bullets also struck the driver’s side seat.

“We advise people involved in an incident when you feel somebody has displayed some type of unsafe driving that may have negatively effected you, the best thing is to slow down, increase distance between yourself and the other vehicle and give yourself time to calm down,” Lee said. “This is a crystal clear case of why we suggest people don’t engage in road rage behavior.”

The victim was unable to provide a definitive description of the suspect and never saw a gun displayed. He provided CHP officers with a partial license plate number of the Hyundai.

Following the shooting, the CHP shut down northbound 101 from the McKee Road onramp to 880 for about 20 minutes and searched the roadway on foot with patrol vehicle lights and flashlights.

No additional evidence or shell casings were located.

Contact Mark Gomez at 408-920-5869. Follow him at Twitter.com/markmgomez.