NICASIO, Calif. (KGO) -- The California Highway Patrol is investigating what caused a head on collision between a Marin County Sheriff patrol car and a passenger vehicle.
It happened at about 10 Saturday morning on the Petaluma-Point Reyes road near Nicasio Reservoir.
The driver of the grey car went to the hospital with non-life threatening injuries.
The deputy was checked out as a precaution and cleared to return to work.
Both vehicles were badly damaged and traffic slowed to one lane while the accident was cleared.
Marin County Sheriff patrol car hits passenger vehicle