SAN JOSE — A Tesla crashed into the back of a San Jose fire truck on Highway 101 early Saturday, according to police.

The 2015 Tesla Model S was traveling about 65 miles per hour southbound on US-101, north of Coyote Creek Golf Drive when it collided with a fire engine that had stopped in the far right lane with its emergency lights activated just after 1 a.m. Saturday, according to a news release from the California Highway Patrol.

“I think I had auto-pilot on,” the driver, whom police identified as 37 year-old Michael Tran, told emergency responders, according to the news release. Police had not determined whether the car was in self-driving mode when it hit the back of the fire engine, as of Saturday night.

When asked about whether the Model S was operating in Autopilot mode, a Tesla spokesperson said, “Tesla has not yet received any data from the car, but we are working to establish the facts of the incident.”

The role of Autopilot has been a central factor in several accidents involving Teslas. Autopilot allows a Tesla to perform some self-driving features such as lane identification and lane changing, but doesn’t allow for fully autonomous driving of a vehicle.

After Tran and his passenger were treated at a San Jose hospital for minor injuries, police arrested Tran on suspicion of driving under the influence of alcohol and booked him into Santa Clara County Jail.

TESLA near miss! For the 2nd time in recent months SJ FF’s escaped serious injury as a @teslamotors “Zero Emissions” vehicle slammed into the back of a #SJFD FireEngine @ 70 MPH on Hwy 101 at 1am – Reportedly the vehicle was in auto mode but auto braking system was not engaged. pic.twitter.com/gDQzXrFZ5S — SanJoseFireFighters (@SJFirefighters) August 25, 2018

Firefighters with the San Jose Fire Department tweeted details of the crash from an unofficial Twitter account, saying, ‘For the 2nd time in recent months SJ FF’s escaped serious injury as a @teslamotors “Zero Emissions” vehicle slammed into the back of a #SJFD FireEngine”.