CRANSTON, R.I. — The Cranston police department is reviewing an incident in which a gun accidentally went off after the funeral for a slain Massachusetts police officer, slightly injuring two other officers.

The July 20 incident, just coming to light, involved a Cranston police sergeant who had been part of the honor guard for the funeral of Weymouth Police Sgt. Michael Chesna, who was fatally shot while investigating a car crash.

A police report says the Cranston officer, who was not identified, was changing out of his uniform on a bus outside Blue Hill Cemetery in Braintree, Massachusetts, when his gun accidentally slipped from his holster and went off.

Two Massachusetts Institute of Technology police officers who were in the area were slightly hurt by debris kicked up by the bullet. Both refused medical treatment.