Authorities on Sunday suspended the search off the Massachusetts coast for six people on an air ambulance that disappeared during a flight from Bermuda to Boston. The U.S. Coast Guard said authorities searched more than 4,400 miles over a span of 66 hours for the four Canadians and two people from Bermuda who were on board. Watch NBC 5 free wherever you are WATCH HERE WATCH HERE Suspending a search is not an easy decision, Rear Adm. Matthew Lake, commander of the Coast Guard's northeast district, said in a statement. We express our deepest condolences to the families and loved ones affected by the tragedy and our gratitude for our partner agencies who helped support search efforts. The Federal Aviation Administration contacted the Coast Guard at 2 a.m. Saturday that it had lost contact with the Gulfstream G100 carrying six people over the Atlantic Ocean. Searchers later Saturday found a debris field off the coast of Nantucket, Lake had said at a news conference on Sunday. Coast Guard crews along with the New York National Guard's Air Rescue Wing and Massachusetts authorities searched a vast area using fixed-wing aircraft, helicopters, boats and cutters. The depth of the water around the debris field was 80 to 90 feet. The U.S. Coast Guard held a press conference Sunday morning to give an update on the search for a missing plane off Nantucket. Here's what we learned. The Canadian-registered air ambulance jet had four crew members and two passengers aboard when it departed Bermuda's L.F. Wade International Airport for the nighttime flight to Massachusetts, according to a statement from the Bermuda airport's operator, Skyport. Air traffic audio indicates that the plane may have been coming in blind when a storm loomed ahead shortly before it vanished. The pilot reported electrical problems and declared an emergency as the jet approached the coast, according to air traffic control audio posted by LiveATC.net. Roger, you said you're coming in blind. Is that what you said? a controller can be heard #nbcdfw #crimewatchdallas