(UNDATED) – Authorities say they found the body of a missing boater in Steuben County's Hamilton Lake.

The Indiana Department of Natural Resources says at 9:23 PM Monday, the body of 18 year old Mason Shuey of Ottawa, Ohio was located and recovered from the lake. An autopsy is being conducted to determine a cause of death.

At 12 AM Sunday, Shuey was a passenger on a boat, and entered the water of Hamilton Lake and was not seen again. At 8:14 AM Sunday, Steuben County Communications was contacted and advised that Shuey was missing.

The Indiana Conservation Department lead the investigation. Responders searched the lake in the area Shuey was last seen, using sonar, aircraft, divers along with search and rescue dogs.

The Hamilton Police and Fire Departments, Steuben County Sheriff's Department, Indiana State Police, Angola Fire Department, Fremont Fire Department, Orland Fire Department, the Steuben County EMS and Indiana Search and Response all helped with the search.