The Honolulu prosecutor’s office has opened an administrative investigation after a gun went off in the office early last week, a spokesman said Wednesday.

A supervisor is investigating the incident, which happened at Alii Place downtown where the prosecutor’s office is located, spokesman Dave Koga said. No injuries were reported.

Sources said an investigator was cleaning the gun when it discharged, sending a bullet through two walls and into a piece of office equipment.

Koga said the investigator, who has been with the department for at least two decades, is still carrying the department-issued Glock 9 mm handgun. The investigator’s police powers have not been restricted.

Agency investigates disturbance at OCCC

The state Department of Public Safety has ordered an internal investigation after 15 inmates at the Oahu Community Correctional Center created a disturbance last week, upset that officials were not responding to their demands to get writing materials to file grievances.

The incident Thursday resulted in the prison being placed in lockdown for nearly seven hours, DPS said Wednesday

The disturbance involved 15 inmates in the prison’s second-floor, single-cell holding unit who flooded some cells and attempted to start fires. Corrections officers and staff immediately contained the disturbance by implementing crisis response procedures to safely de-escalate the situation within an hour, spokeswoman Toni Schwartz said.

She said “a lockdown was initiated at about 11:30 a.m. and lifted at 6 p.m.”