Vermont authorities are investigating the death of Sophie Nyweide, a former child actor best known for her role in the film "Mammoth," as a possible unintentional overdose, according to a statement released by the Bennington Police Department.

Sophie Nyweide's mother issued a statement on the actress' death at the age of 24 amid reports that the investigation into her cause of death is still ongoing. Police have reportedly not ruled out foul play.