PROVINCETOWN — The U.S. Coast Guard says a sick fisherman was airlifted from his vessel off the coast of Massachusetts.Crews arrived at the 88-foot-long fishing boat about 115 miles east of Provincetown around 4:15 p.m. Sunday.Petty Officer 3rd Class Luke Headley says the rescue was "complex" due to darkness and the configuration of the boat's rigging.The 24-year-old man was airlifted to Barnstable Municipal Airport in Hyannis.