Council Bluffs Police are investigating the death of a teenage girl on Saturday.
Authorities found 15-year-old Mireya Mata-Alvarez in the back seat of a car behind a JC Penney store in Council Bluffs.
Mata-Alvarez was with other teens most of the night. One of those in the group with the teen called 911, according to the press release.
Police said they believe alcohol and marijuana was used by the group. Police said they do not believe the death was a result of foul play but are currently awaiting autopsy and toxicology results.