JEFFERSON COUNTY — The Jefferson Fire Protection District, Illinois State Fire Marshal, Jefferson County Coroner and the Jefferson County Sheriff’s Office are investigating a fatal fire Sunday night.

According to the Fire District, they received a call at 9:50 p.m. Sunday about a fire in the 14000 block of Tolle Lane in rural Mt. Vernon.

When firefighters arrived on the scene they found the home fully involved in flames. Mutual aid was called in from Mt. Vernon, Kell, and Woodlawn.

Early reports indicated a person was trapped in the home. When firefighters were finally able to enter the structure they reportedly found a deceased woman in the bathroom.

The victim’s identity isn’t being released at this time and no cause of the fire has been determined at this time. The Tolle Lane between Green and Pumphouse was closed until firefighters cleared the scene around midnight.

The investigation into the fire is ongoing.