A Citrus Heights man was killed in an early morning crash on Interstate 5 in Yolo County over the weekend.
The Yolo County Coroner's office identified the man as 58-year-old Steven Carl Luth.
The California Highway Patrol said that Luth was traveling southbound on I-5 at the Yolo Bypass near County Road 22 about 1 a.m. Sunday when he lost control of his 1998 Mercury and hit a bridge railing.
The car then crossed both lanes and hit a bridge railing on the left side of the freeway. At some point Luth got out of his car, according to the CHP.
Around the same time, West Sacramento police officer stopped to render aide. Luth suffered fatal injuries when he was struck after exiting his vehicle during a series of collisions, according to a CHP.
The West Sacramento police squad car, Luth's car and two other cars were damaged. Four people in a Chevrolet suffered injuries.
The West Sacramento officer was transported to UC Davis Medical Center for precautionary reasons. The series of crashes is being investigated by the CHP.