Boston ? Four crew members are feared dead after the Coast Guard discovered a fishing vessel Sunday submerged 36 feet in Nantucket Sound.

Coast Guard rescuers said it appeared unlikely the crew would be found alive in the frigid waters, but they would continue the search.

The 75-foot Lady of Grace was last heard from Friday night and was supposed to return to New Bedford Harbor early Saturday. At the time the boat went missing, the wind was blowing at 30 to 35 mph with 8- to 10-foot waves.