SIDNEY, Ohio (WDTN)- A man killed in a house fire in Sidney on Sunday has been identified.

The Sidney Department of Fire and Emergency Services identified the victim of the fire in the home on Elm Street as 61-year-old Timothy Belt. Fire crews were called to a reported structure fire with two trapped inside on Elm Street, near Broadway Avenue, around 11:15 a.m., according to a release from the fire department.

Crews arrived to find the single-family home with heavy fire and smoke showing throughout the structure. Firefighters and medics on scene were told one occupant was still inside the home and three were outside needing medical attention.

Firefighters found Belt inside the house during their first search. Three people were taken to Wilson Health in Sidney with injuries. No firefighters were injured in the fire.

A box alarm was called, recalling off-duty Sidney firefighters along with fire crews from Anna, Lockington and a Piqua Medic. AES and CenterPoint Energy were called to the scene to secure the utilities.

The home was heavily damaged. The department said the cost of damage to the house is estimated to be $54,000, with an estimated $10,000 to the house’s contents. Some minor damage was caused to neighboring houses.

The cause of the fire is currently unknown. The fire is under investigation by the Sidney Department of Fire and Emergency Services Fire Investigation Unit and the State Fire Marshal’s office.