Two deputies from the Los Angeles County Sheriff's Department (LASD) were shot in the city of Compton late on Saturday (Sept 12) night, the LA county sheriff's department tweeted.
"One male deputy and one female deputy were ambushed as they sat in their patrol vehicle," the tweet read.
"Both sustained multiple gunshot wounds and are in critical condition."
They are currently being treated.
An individual was seen approaching the deputies' car, firing shots into the car and running away, according to a video tweeted.
Reacting to the incident, US President Donald Trump retweeted the video and wrote: "Animals that must be hit hard!"
According to authorities, the footage of the incident was recovered from a nearby a metro station in Compton.
The suspect is at large.
"At this point we've a very very generic description of a dark-skinned male and that came from one the victims," Captain Kent Wegener said at a news conference.