At least one person died Sunday afternoon following a collision involving a motorcycle and a vehicle near Lake Berryessa, according to the California Highway Patrol.
The collision was first reported at 12:22 p.m. at the intersection of Chiles Pope Valley and Barnett roads in unincorporated Napa County, CHP officials said.
Drivers should expect delays in the area, according to CHP officials.
No other information was immediately available.
Stay with KRON 4 News for more on this developing story.
Bay City News contributed to this report.