Detectives are investigating the death of an unidentified man whose body was found Sunday night in the Great South Bay in Sayville, Suffolk County police said.

A ferry crew saw the body about 8 p.m., three-quarters of a mile south of Browns River Road, police said.

The man was wearing a black T-shirt, black jeans and black sneakers, police said. An autopsy will be conducted, police said.

Detectives are asking anyone with information on the case to call them at 631-852-6392 or Crime Stoppers at 800-220-8477.

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