A CHP officer trying to help someone inside a disabled vehicle following a hail storm broke his leg Friday morning after a driver slammed into a pickup truck on a San Jose highway.

California Highway Patrol Officer Steve Griefer said that driver, 20-year-old Stevone Jones of San Jose, was later arrested on a felony charge of driving under the influence.

Jail records indicate that Jones was in custody Friday morning on $25,000 bail.

The officer, identified in a CHP news release as Skyler Tesch, 31, must undergo surgery for his leg. The CHP said he is from Lodi and has been on the force for 2ï»¿1/2 years.

Tesch and his partner arrived at the Bascom Avenue offramp on Interstate 880 at 1:49 a.m., Griefer said. They were trying to help the driver inside a pickup truck, which had spun out and got stuck in the mud.

Suddenly, a Lexus smashed into the pickup truck, and the truck then smashed into the officer’s leg, Griefer said.

Tesch’s partner called for assistance. Tesch was taken to the hospital and Jones was arrested.

Contact Lisa Fernandez at 408-920-5002.