A body was found in a marsh near Bay Point Sunday morning, Contra Costa County sheriff's officials said Monday.
People fishing in the area of Mallard Island discovered the decomposing body and reported it at 8:49 a.m., according to the sheriff's office.
The sheriff's Marine Patrol Unit recovered the body and the coroner's office is working to determine its identity. Investigators have not determined how long the body was in the water.
Anyone with information about the body has been asked to contact the Contra Costa County coroner's office at (925) 313-2850.