The closure was announced by police via Twitter at 3:58 p.m., affecting Highway 35 between Hickey Boulevard and Manor Drive.
Officers are advising commuters to use an alternate route.
TRAFFIC ALERT! Highway 35 between Hickey Blvd. and Manor Dr. is closed due to a major collision. Please use alternate routes.— Pacifica Police (@PacificaPolice) November 23, 2015