Investigators did not have much information but have confirmed to Fox 2 that the remains are human and that they appear to have been in the park for quite some time. Detectives and forensic experts were seen entering the wooded crime-scene with shovels and rakes.
Detroit police was on-scene late into Sunday evening investigating.
Investigators say they will be back at the park Monday to investigate further.
UPDATE: A medical examiner has since determined the remains belonged to an animal.