Two people inside a Ford F150 were pronounced dead on scene when the driver lost control and plunged down a 200-foot embankment off Interstate 15, California Highway Patrol (CHP) Officer Jim Bettencourt confirmed.
The incident happened around 8:30 p.m. Saturday evening when a man, who has not been identified, was driving his 2008 Ford northbound on Interstate 15 just north of Gopher Canyon Road, Bettencourt said.
The driver drifted into the number 2 lane for unknown reasons and sideswiped a 2015 Honda Civic driven by an 18-year-old woman from Rialto, Bettencourt said.
The impact of the collision made the driver lose control of his car and hit the center divide, officers said.
After hitting the center divide, the car shot to the right, crossing all lanes of traffic and plunging down a 200-foot embankment.
The driver and his 71-year-old passenger, from Huntington Park, were killed in the crash, Bettencourt said. The driver of the Honda Civic did not suffer injuries.
It is unclear if alcohol or drugs played a roll in the collision.
The crash is under investigation.