Authorities respond Saturday night to an incident in the 500 block of West New Castle Street.

The Butler County coroner’s staff confirmed that an autopsy was performed on a person Sunday morning after police were called to an incident in the 500 block of West New Castle Street Saturday night.

Butler city police reported Sunday that they would not release the name until Monday, at which point Police Chief Bob O’Neill would issue a news release on the topic.

When asked about the incident, Deputy Coroner Larry Barr confirmed only that an autopsy had been performed at 8 a.m. Sunday. He deferred to police to release the person’s name.

The results of the autopsy are pending toxicology testing.