HILLSBORO, Mo. (AP) — An autopsy is planned for a 17-year-old St. Louis-area girl who authorities say died after being found unconscious during a weekend party at a supposed haunted house.

Jefferson County authorities don’t suspect foul play in the death of the girl, who died Saturday night on arrival at a hospital.

Her name hasn’t yet been publicly released.

Authorities say the teenager was found unconscious and not breathing behind the Morse Hill Hotel near Hillsboro, south of St. Louis. The hotel is a 19th-century farmhouse now marketed as a haunted house with guided “paranormal investigation” tours.

Saturday night’s party included a disc jockey and was attended by hundreds of people. Sheriff’s Capt. Ron Arnhart says the crowd dispersed when deputies tried to resuscitate the girl.