An overturned semi trailer closed traffic on the Golden State (5) Freeway for several hours Tuesday.
California Highway Patrol officers were called at 2:28 a.m. to the northbound freeway and Branford Street where they learned that two trucks had initially been involved in the collision, said a CHP spokesman.
The driver of the overturned semi was not injured.
The CHP issued a SigAlert for the accident while officers investigated the cause of the rollover.