LIVERMORE -- A student at Modesto's Davis High School was stabbed in Livermore over the weekend after he and a group of fellow students on a school outing got into a fight after they had stopped for food.
A bus carrying the students, who had attended the Black College Expo in Oakland, stopped at the In-N-Out Burger in Livermore on Saturday evening on the way back to Modesto.
About half of the 42 students broke away from the rest of the group and ran across four lanes of traffic to a Jack in the Box on the other side of the street, said Livermore police officer Traci Rebiejo.
While crossing the street, the group apparently almost caused a motorcyclist to crash, Rebiejo said.
The motorcyclist pulled over and confronted the students at the Jack in the Box, and a fight ensued in the parking lot.
Rebiejo said about 20 teenagers were involved in the attack on the motorcyclist, who pulled out a knife and stabbed the 17-year-old student in the shoulder.
Rebiejo said the stabbing, which wasn't life-threatening, could be considered self-defense, but detectives are investigating the incident.
The motorcyclist was taken to a hospital and treated for a broken nose and other facial injuries.
Jorge Perez, director of parent and community involvement for Modesto City Schools, said there were four chaperones on the trip, not including the bus driver.
He said he could not comment further because a police investigation is under way.
Bee staff writer Erin Tracy can be reached at email@example.com or (209) 578-2366. Follow her on Twitter, @ModestoBeeCrime.