The U.S. Coast Guard is actively searching for a medical transport plane that went missing off the coast of Nantucket while en route from Bermuda to Boston with six people on board. Debris has been discovered in the Atlantic Ocean, prompting crews to expand their search efforts, which now include the ocean floor. Eyewitness accounts and preliminary investigations suggest that the aircraft, identified as an Ontario-based air ambulance, lost contact shortly after takeoff, possibly due to electrical issues. As the search reaches its second day, the priority remains finding any survivors among the missing.