Police are investigating a car crash that left one person dead Thursday night.

The single-vehicle crash happened on the Zamora onramp from I-5 North just after 5:15 p.m.

According the CHP, the car went off the road and overturned, ejecting the driver at County Road 99W.

The driver was pronounced dead at the scene.

The cause of the accident is unknown at this time.

The identity of the driver has not been released.