One crew member has been found dead and three others were rescued after a tugboat sank in icy waters off Fire Island in New York . The Coast Guard says the tugboat called Sea Bear sank at about 2 p.m. Saturday . Three male crew members in immersion suits were rescued by the Coast Guard from the water a mile off a section of the island known as Fire Island Pines . Coast Guard officials say the body of the fourth crew member was recovered shortly after 5 p.m. following a search by three Coast Guard boats , a helicopter and two other tugboats . Coast Guard Command Duty Officer Mark Averill says the victim was not wearing an immersion suit . Averill says the water temperature was 37 degrees . The victim 's name was not immediately released . Rescue : The Coast Guard says the tugboat called Sea Bear sank at about 2 p.m. on Saturday in icy and stormy waters about a mile off Fire Island on New York 's Long Island . A search was underway for a missing tugboat crew member after three others were rescued Saturday when their boat sank in icy and stormy waters about a mile off Fire Island on New York 's Long Island , authorities said . One of the crew members managed to make a cellphone call to the Coast Guard at about 2 p.m. as the tugboat Sea Bear was sinking , said Coast Guard Petty Officer Morgan Gallapis . She said the man said their boat was sinking and they needed assistance . 'They had only seconds to let us know before they sank , ' Gallapis said . Three male crew members in immersion suits were rescued by the Coast Guard from the water a mile off a section of Fire Island known as the Pines , Gallapis said . But another man was missing as a search continued by three Coast Guard boats , a helicopter , two other tugboats and Suffolk County Police Marine Bureau boats , authorities said . Suffolk officers on the beach assisted in the search . One dead : Coast Guard boats ( not pictured ) saved three crew members and later found one dead crew member floating in the frigid waters without a protective suit . Gallapis , based in the New Haven , Connecticut Coast Guard station , said the three men who were rescued were treated for hypothermia at the Fire Island Coast Guard station but otherwise had no physical injuries . She did not know what caused the boat to sink . The accident occurred during a storm . Suffolk County police said inclement weather prevented their aviation officers from flying and police Marine Bureau boats were hampered by heavy ice in the water . The petty officer said the tugboat that sank was among three heading back to their New York City base after completing a project on Long Island . 'This tug was in the back of the line when it sank , ' she said . 'The other tugs continued without seeing them . They heard the distress call and headed back to assist in the search . '
The Coast Guard says the tugboat called Sea Bear sank at about 2 p.m. on Saturday . Three male crew members were rescued by the Coast Guard from the water a mile off a section of the island known as Fire Island Pines . Coast Guard officials say the body of the fourth crew member was recovered shortly after 5 p.m. and he was not wearing an immersion suit . The frigid waters were 37 degrees at the time of the rescue . The immersion suits protected the three surviving crew members from the dangerously cold water temperature . None of the victims identities have been released .