DES MOINES, Iowa (AP) — Police have confirmed that human remains found at a homeless camp near downtown Des Moines was the result of a homicide. Station KCCI reports that police confirmed the homicide investigation Friday.

Police received a tip Tuesday that led investigators to a wooded area behind an abandoned manufacturing plant, where the remains were found. At the time, Sgt. Paul Parizek said the body had been “cleverly concealed.”

Police have not yet shared other details of how the person died or identified the remains. Police says the body was likely in the area for a few months.