ABC7 Bay Area is reporting that the deputy's car struck a tree off Highway 1, just north of Point Reyes Station in Marin County.
Firefighters extracted the deputy from the car and he was taken to a nearby hospital where he died.
All lanes of Highway 1 were closed Thursday morning until 6:30 a.m. while the cause of the crash was investigated. Early reports indicate the deputy was responding to a 911 call when he lost control of his car on a left curve of the road, hitting a tree.
The Marin County Sheriff's Office has scheduled a news conference for this afternoon at 1 p.m.
As we struggle with our loss today, Sheriff Robert Doyle will host a press conference at the main office at 1600 Los Gamos Drive, Ste. 200 in San Rafael, starting at 1pm. pic.twitter.com/g8INHOcAHj