A privately owned submersible carrying five people on a deep-sea dive to the wreck of the Titanic has been missing at the bottom of the Atlantic Ocean since Sunday. Banging sounds, heard across 30 minute intervals, have now been detected by a Canadian seaplane, sending authorities scrambling to locate their source.
On Tuesday afternoon, the U.S. Coast Guard estimated that 40 hours of the vessel’s emergency oxygen supply could remain. The missing crew consist of Hamish Harding, a British billionaire and adventurer; Shahzada Dawood, a Pakistani-British businessman and his son, Suleman; Stockton Rush, chief executive and founder of OceanGate Expeditions ; and Paul-Henri Nargeolet, a French submersible pilot.
