A person died from an apparent medical emergency Saturday on the Santa Ana (5) Freeway in Norwalk.
A witness notified the California Highway Patrol about 2 p.m. that a black Ford Focus was stopped on the northbound Santa Ana Freeway just south of the Rosecrans Avenue off-ramp.
Los Angeles County firefighters found the motorist in cardiac arrest and performed CPR before transporting the person to a hospital in critical condition, said Dispatch Supervisor Ed Pickett.
The CHP reported the incident as a fatality.