Riley County police say a 22-year-old Manhattan man is dead after a standoff with police.

A Riley County news release says Derrick Outten shot himself after a standoff at a Manhattan apartment complex that lasted several hours Monday.

The standoff began when Outten’s wife called police to say her husband was in the apartment with a handgun and threatening to harm himself. She was not in the apartment.

The tenants of the apartment complex were evacuated during the ensuing standoff. When officers could not establish contact with Outten, tear gas was shot into the apartment. Police say a shot was heard shortly after that and officers found Outten’s body inside the apartment.