The collision was reported just after 10 p.m. near Ellis Avenue and Magnolia Street.
AIR7 footage showed a pickup truck on its side in the middle of the road following the crash. Another damaged vehicle - a white SUV stopped on the sidewalk several feet behind the truck - appeared to have been involved in the incident.
At least 1 killed after possible chase ends in violent crash in Fountain Valley
One person was detained following the crash. They were seen placed in handcuffs while sitting on a curb.
It's unclear how many people were injured in the crash, but multiple people were taken to a hospital. Their condition is unknown.
Police did not specify if the person who died was an occupant of the pickup truck or the white SUV.
Details on what led up to the crash were not immediately released.