1 of 1- Spunky
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Missing Titanic sub search continues as banging sounds heard
- Dwindling air supply: A massive search operation is underway in an area twice the size of Connecticut for the submersible that went missing Sunday – as officials fear there's less than a day's worth of oxygen left on board the craft.
- Salvage equipment: A US Navy salvage system capable of retrieving objects or vessels off the bottom of the ocean floor has reached St. John’s, Newfoundland, but it has not yet left for the site in the North Atlantic.
- Banging sounds: The US Coast Guard said it has not identified the source of banging noises that were picked up by sonar Tuesday and Wednesday during the search.
- Who's on board: The sub is carrying five people — a British adventurer, a French diver, a Pakistani father and son and the founder of OceanGate Expeditions, the company that operates tours to the Titanic wreckage.
