
Two Los Angeles police officers are recovering in hospital after being shot in what police are calling an ambush.
Video of the incident shows a figure approach the officers' vehicle, before opening fire and running away.
Los Angeles Sheriff Alex Villanueva called the act "cowardly". The suspect remains at large.
The Los Angeles County Sheriff's Department has announced a $100,000 (£78,000) reward for any information leading to the gunman's arrest.