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With the fate of Titanic-bound submersible clear, focus turns to cause of the fatal implosion

Debris field found near the Titanic during search for submersible: U.S. Coast Guard

The latest on the search for the Titan submersible and outlook for rescue

Underwater noises heard in frantic search for submersible missing with 5 aboard near Titanic

Rescuers race against time to find the missing sub in the Atlantic bound for the Titanic site