Crews are investigating bones found along the eastbound Interstate 10 frontage road.
The bones were found near I-10 and Craycroft.
They were found by an inmate and Tucson News Now has confirmed they are human bones and are identified as an adult. It is unclear whether it is a male or a female.
The inmates were doing landfill cleanup when the discovery was made.
Detectives are on the scene.
Copyright 2012 Tucson News Now. All rights reserved.
7831 N. Business Park Drive