Authorities are investigating after a New Orleans police officer shot and killed an armed robbery suspect.

Multiple news outlets report the incident happened Tuesday at an apartment complex. Authorities have not released the names of the suspect or the officer involved in the shooting.

Police Superintendent Michael Harrison says the man killed was one of two suspected robbers inside an apartment that officers were watching.

Harrison says the suspects exited the unit, but before police could move in to arrest them, they ran and officers followed.

At some point, Harrison says one of the officers, who was wearing plainclothes, encountered one of the suspects, who was armed, and fired his weapon, striking the suspect.

The other suspect was taken into custody.

It's unclear whether the suspect fired a gun at the officer.