FAIRFIELD -- The California Highway Patrol reported Saturday night that a Solano County Sheriff was the victim of a fatal accident while pursuing a speeding vehicle.

According to the CHP, the incident occurred at 9:41 p.m., on Cordelia Road just west of Hale Ranch Road, when the deputy attempted to pass a slower vehicle while in pursuit.

As the sheriff's vehicle exited a curve in the road the vehicle's right tire entered the dirt on the edge of the roadway and hit a large rock, overturning the patrol unit, according to the CHP.

The deputy who was driving was ejected from the patrol unit, the CHP reports, and thrown into a water-filled ditch.

The deputy, and his passenger, were transported to North Bay Hospital for treatment of the their injuries. According to the CHP, the driver succumbed to his injuries at the hospital, and the passenger suffered minor injuries.