Traffic was backed up for miles Friday after a high-speed pursuit ended on the Golden State (5) Freeway in San Fernando.
The pursuit of a stolen white Lexus began in Monterey Park.
Police there notified the CHP they were chasing the suspect about 2:30 p.m., an officer says.
A sheriff's official said the vehicle belongs to a Los Angeles Port Police officer.
It's unclear if there was a weapon in the vehicle.