TEMECULA (CBS) — Officials say one man was killed Sunday morning by an apparent drunk driver in Temecula.

The two-car crash happened at about 5:20 a.m. at the traffic signal at Rancho California and Moraga roads, said sheriff’s Sgt. Jim Larson.

READ MORE: Caught On Tape: San Bernardino Sheriff Deputy Kicks Surrendered Suspect In Head 2 times

The victim was traveling westbound on Rancho California Road approaching Moraga, and the second vehicle was traveling eastbound on the same road, Larson said. “As both vehicles entered the intersection, they collided, causing the driver to swerve into a brick wall at the intersection.”

Both of the drivers were trapped in their vehicles and had to be extricated by firefighters, said Jody Hagemann of the Riverside County Fire Department.

READ MORE: Car Fire On I-10 Freeway Slows Traffic

Rescue personnel treated the drivers and took them to area hospitals by ambulance. One of them was pronounced dead at 6:27 a.m., Larson said.

The other motorist was seriously injured, Hagemann said.

“At this time of the investigation, the driver of the second vehicle is suspected of being under the influence of alcohol, but the investigation is continuing,” Larson said.

MORE NEWS: Leimert Park Rising, A Reopening Ceremony And First Official National Observance Of Juneteenth

(©2012 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)