WATERLOO, Iowa (KCRG) – Police say they’re investigating after possible human remains were found at the Waterloo Waste Treatment Plant. Officers were called to the plant, at 2550 Kenyon Avenue, at around 12:15 p.m. on Monday after the remains were found. Police said the remains will be taken to the Iowa Medical Examiner’s office for identification and cause of death.

No additional details have been released. The investigation remains ongoing.