Omaha police are trying to determine whether officers acted properly when they shot and killed a man early Sunday.

Police Lt. Darci Tierney says gunshots were reported in northeast Omaha around 2:15 a.m. Sunday.

Officers who were investigating the gunshots encountered 29-year-old Jermaine Lucas. Tierney says Lucas was armed.

During the encounter with Lucas, officers fired their weapons and Lucas was killed.

Two Omaha police officers have been placed on administrative leave while the shooting is investigated. A grand jury will also review the incident to evaluate whether the officers acted properly.