A St. Louis police officer is in critical condition but expected to survive after being shot, in what authorities are calling, an “ambush” style shooting.

Police Chief Sam Dotson says the 46-year-old Sergeant was shoot in the twice face, but is able to speak.

The shooting happened about 7:30 p.m. Sunday. Dotson says the officer was not involved in a call or a traffic stop but was sitting in traffic when another car pulled up alongside his marked police vehicle and began shooting.

The suspect got away. Police are using helicopters, SWAT teams and other resources in the search for the suspect.