A woman died when she was thrown from her vehicle after colliding with another car on Interstate 5 near Nestor, the California Highway Patrol said.
"The driver of a Ford Ranger pickup was driving northbound on I-5 when her car veered across all lanes of traffic and was struck by the Volkswagen Jetta driven by a 24-year-old man from Chula Vista," CHP spokesman Salvador Castro wrote in a press release.
"The impact of the collision caused the Ford to flip over and eject the female passenger, a 63-year-old female from San Diego," the officer explained.
The 63-year-old woman was transported to a local hospital, where she died of her injuries, CHP confirmed.
On his part, the driver of the Volkswagen suffered minor injuries.
CHP investigators are finding out what caused the driver of the Ford pickup to swerve across all lanes of traffic.
The CHP reported that the accident was not influenced by alcohol or drug use.
The woman's name is was withheld until her relatives are notified.
The accident caused the temporary closure of two lanes of Interstate 5 north.