DETROIT (WWJ/AP) – Authorities say a group of children were playing after school when they came across human remains in a wooded area on Detroit’s west side.

Sources tell WWJ the kids were playing Thursday afternoon near the Rouge River when they found several bones, along with some gym shoes.

READ MORE: Michigan Matters: From Mackinac to Motor Bella, Major Events Return

Police say the remains are believed to be of an adult.

The medical examiner’s office is working to identify the remains and determine how long they may have been in the area, although investigators believe the bones might have been there for a couple of years.

READ MORE: Rolling Stone Magazine Named ‘Respect’ #1 Song Of All Time

Stay with WWJ Newsradio 950 and for the latest.

TM and © Copyright 2014 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2014 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.

MORE NEWS: Fourth Stimulus Check: Will You See Another Relief Payment Soon?