A 65-year-old man took his own life in a parking lot next to the Sheridan Police Department on Saturday, the department says.

Mark Underhill reportedly shot himself after refusing help from dispatchers.

In a statement, the department's criminal investigations division says Underhill called 911 at about 7 a.m. Saturday.

Underhill told a dispatcher that he was in a parking lot next to the police department, had a gun in his possession and intended to take his own life.

Dispatch tried to calm Underhill and give him other options, but Underhill reportedly refused help.

Police officers trained in crisis intervention made contact with Underhill, intending to help him. Officers told Underhill to put his gun down and show his hands.

Underhill responded by shooting himself, according to the statement.

Officers then approached, but found no vital signs. The body was turned over to the Sheridan County Coroner's Office, which then notified Underhill's family.