A rescue mission is underway after a tourist submarine carrying five people to the wreck of the Titanic went missing in the Atlantic Ocean.
Among those missing is British billionaire explorer Hamish Harding and renowned French diver Paul-Henri Nargeolet.
On Monday afternoon (June 19), Rear Admiral John Mauger of the US Coast Guard said that the vessel had between 70-96 hours of oxygen left, meaning its a race against the clock to find the craft.
The submarine submerged on Sunday morning (June 18), and its support vessel – the Canadian research icebreaker Polar Prince – lost contact with it an hour and 45 minutes later.
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