The incident happened shortly after 7 p.m. Thursday on the Rosecrans onramp to the northbound 405.
CHP logs indicate officers were initially responding to a report of a small fire on the side of the freeway.
Apparently there was a confrontation between the officers and a person at the scene. One or more officers discharged their weapons.
The individual was described as conscious and breathing after the shooting. The person was later seen handcuffed to a gurney being loaded into an ambulance.
Officers requested a freeway shutdown at Inglewood Avenue so a perimeter could be established.
Additional details were not immediately available.