PORTERVILLE, Calif.—Porterville police say two teenagers are dead after speeding away from a traffic stop.

Officers with the Porterville Police Department say they stopped a driver on suspicion of driving under the influence on Monday at about 9:30 p.m. After officers asked the driver to step out of the car, authorities say passenger jumped into the driver's seat and drove off.

According to police, the car later rolled multiple times before hitting a large tree.

A 15-year-old girl and an 18-year-old male were pronounced dead at the scene. An 18-year-old female was airlifted to Kaweah Delta Hospital and her injuries were non-life threatening.

The identities of the victims have not been released.

Police say alcohol may have been involved in the crash.