FIRE ISLAND - The body of a swimmer who went missing early this morning was discovered on Fire Island, officials say.The U.S. Coast Guard says the 26-year-old man went for a swim with a friend off Bayberry Walk in Ocean Beach.At around 2:45 a.m., the victim's friend called the Coast Guard asking for help, saying that the 26-year-old man vanished in the water. The swimmer's body was spotted at around 11 a.m. Police have not released the man's name.