A man who exchanged gunfire with police late Monday night was shot dead by an officer, according to authorities.

The man, identified Tuesday as Dominique Campbell, 41, of Southeast, was pronounced dead at a hospital. Police have not released the name of the officer, who they said was treated for injuries that were not life-threatening.

According to D.C. Police Chief Cathy L. Lanier, the 10:45 p.m. shooting happened while officers were seeking a suspect in a shooting in the area of the 4200 block of Sixth Street SE.

About half an hour earlier, according to police, a man had been shot in the leg in the 4300 block of Third Street SE, less than a mile way.

Shortly afterward, Lanier said, a man with a gun was reported on Sixth Street, and a man who appeared to match the description of that suspect was confronted by an officer.

The man fired as the officer approached, according to police, and the officer returned fire. The man was hit, Lanier said, and the officer was grazed in the leg.

Police found shell casings from a gun that was not a police weapon, and a gun was recovered at the scene, Lanier said.

It was unclear whether the shootings on Third and Sixth streets were related. Police were still investigating.

A resident of the area said she heard as many as five or six shots and later saw someone on the ground outside the Cascade Park apartments, a three-story brick building.

Before the shooting, she said, she heard nothing. Then, she said, “all of a sudden” gunshots were fired.

Staff writer Maggie Fazeli Fard contributed to this report.