Police in St. Clair County with a bizarre and very disturbing discovery--five bags with human body parts inside.

The remains were found on Thursday along roads in St. Clair Township, about 50 miles northeast of Detroit.  The Times Herald of Port Huron is reporting that the bags were found by someone who contacted police.  The area was blocked off as investigators searched for clues as to where the remains came from.

Sheriff Timothy Donnellon says authorities are looking for a middle-aged woman in connection with the discovery.  It's believed she was driving a gray or tan sport utility van believed to be a 1990's model.  Police say she is being sought only for questioning.

Anyone with information on the case is being asked to contact the St. Clair County Sheriff's Department.