Investigators are working to determine whether a body found near a muddy creek is the result of criminal activity, an accident, or a natural occurrence.

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The Anoka County Sheriff's Office said in a news release the body of what appears to be an adult male was discovered in the 200 block of Coon Rapids Boulevard in Coon Rapids Friday.

A lawn maintenance worker spotted the remains in the mud.

There are a number of business in that immediate area, including a Kwik Trip gas station on the south side of the creek, and a staffing agency and irrigation supply company on the north side.

The sheriff's office says it's "apparent the body has been in the location for some time," but the scope of the incident isn't known – meaning whether it was criminal, accidental or natural.

Authorities aren't releasing any more information at this time.