SAN FRANCISCO - APRIL 17: Waste is separated on the gravity belt thickener at the San Francisco Public Utilities Commission's Southeast Water Pollution Control Plant during a NASA tour of its OMEGA wastewater biofuel system April 17, 2012 in San Francisco, California. Methane is captured from the waste treatment process and used to feed algae, which can be converted into biofuel. The OMEGA, or Offshore Membrane Enclosures for Growing Algae project, uses treated sewage to grow algae in floating tubes that can capture carbon dioxide and produce biofuel without competing with agriculture for water, fertilizer, or land. (Photo by Sarah Rice/Getty Images)

More remains have been discovered at a wastewater treatment plant in downtown Detroit.

Four kidneys and a heart have turned up at a local wastewater treatment plant on Detroit’s east side a source tells FOX2. The organs have been found in the filtration that removes debris before the water becomes treated.

The heart was discovered just before Christmas on December 23’rd.

The facility where the organs keep appearing is located at 9300 W. Jefferson Ave. The Wayne County examiner is working to determine whether the remains are human in origin.