CNN —What was supposed to be a 10-hour journey to the Titanic shipwreck ended in tragedy, with all five passengers on the missing submersible killed in a catastrophic implosion. An underwater implosion refers to the sudden inward collapse of the vessel, which would have been under immense pressure at the depths it was diving toward. It’s unclear where or how deep the Titan was when the implosion occurred, but the Titanic wreck sits nearly 13,000 feet (almost 4,000 meters) below sea level. The submersible was about 1 hour and 45 minutes into the roughly 2 hour descent when it lost contact. But the submersible had only been equipped with 96 hours of oxygen, setting Thursday as a key target to locate and retrieve the submersible.

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Persons: Rick Murcar, Aileen Maria Marty, “, ” What’s, ”, Tom Maddox, It’s, OceanGate, Stockton, ” Rush, Rush, Hamish Harding, Paul, Henri “, Nargeolet, Shahzada Dawood, Suleman Dawood, Dawood Hercules, Hussain Dawood, Kulsum Dawood Organizations: CNN, US Navy, Titan, National Association of Cave, Naval, Florida International University, US Coast Guard, Forensic Investigators, Maritime Horizon Services, Maritime, Navy, OceanGate Expeditions, Stockton Rush, Princeton, United Arab Emirates, Action Aviation, Titanic Inc, French Navy, Dawood Hercules Corp Locations: Newfoundland, Canada, British, French