St. Petersburg police are investigating a body found floating in the water near the Municipal Marina next to the St. Petersburg Pier.
Police said the body of the white male, possibly a 55-year-old transient, was found by a passer-by just after noon Monday.
The man has been identified but his name has not yet been released pending notification of next of kin.
Police said there are no obvious signs of trauma to the body. His cause of death is under investigation.