ST. LOUIS (AP) — Two police officers have been shot in separate incidents in what authorities are calling targeted attacks.

A St. Louis police sergeant is hospitalized in critical condition but expected to survive after being shot in what the police chief calls an “ambush.”

Police Chief Sam Dotson says the 46-year-old officer has been with the force for about 20 years and is a married father of three. Dotson says he was shot twice in the face but is able to talk.

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. The officer told police he heard at least two shots. Police reported early Monday that the suspect was later killed in a shootout with police.

Authorities say a San Antonio detective writing out a traffic ticket to a motorist was shot to death in his squad car late Sunday morning outside police headquarters by another driver who pulled up from behind.

San Antonio police Chief William McManus identified the officer as 50-year-old Benjamin Marconi, a 20-year veteran of the force.