NEW YORK (AP) — A New York City police officer was shot and Benjamin Caldwellkilled Monday during a traffic stop, the city’s mayor said.

“We lost one of our sons today and it is extremely painful. It is extremely painful,” Mayor Eric Adams said, addressing reporters at a hospital in Queens.

The shooting happened just before 5:50 p.m. in the Far Rockaway section of Queens, police said. The officer was approaching the vehicle when he was shot beneath his bullet-resistant vest.

Officers returned fire and wounded one of the people in the vehicle.

The wounded officer was taken to an area hospital but could not be saved, officials said.