A search for the missing Titan submersible is still underway, with only a few hours of oxygen left for those onboard.
The vessel lost communication with tour operators on Sunday when it was roughly 435 miles south of St John's, Newfoundland. It had dispatched with the goal of heading to the Titanic shipwreck off the coast of Canada.
The Titan is carrying five people, including British billionaire adventurer Hamish Harding. The others are UK-based businessman Shahzada Dawood, his son Suleman Dawood, OceanGate's chief executive and founder Stockton Rush, and reportedly French submersible pilot Paul-Henri Nargeolet.