Police say a man was found in the Great South Bay on Tuesday of an apparent drowning.

Marine Bureau officers responded to Grass Island, located approximately one mile south of Fire Island Avenue, at approximately 2:40 p.m. after a 911 call reported someone floating in one foot of water.

Police say an adult male was found unresponsive and pulled from the water and pronounced dead.

The man was transported to the Office of the Suffolk County Medical Examiner where an autopsy will be performed to identify the victim.

Detectives are asking anyone with information to call the Homicide Squad at 631-852-6392.