The discovery of human remains near a reservoir in Waltham, Massachusetts, are under investigation, according to the Middlesex District Attorney's office.
The remains were found Thursday near the Cambridge Reservoir.
A preliminary investigation indicates that the remains have been there for some time, according to the prosecutors.
The incident has been referred to the Office of the Chief Medical Examiner.
No other information was provided.
The Middlesex District Attorney's Office along with state police, Waltham police and Cambridge police are investigating.