Missing Titanic Sub: All Passengers Presumed Dead After Catastrophic Implosion.

The search for the missing submersible vessel that was descending to the wreckage of the Titanic ended with the discovery of its destroyed parts on the ocean floor and the conclusion that its five occupants were killed due to a "catastrophic implosion." The Coast Guard will continue searching the area, but authorities could not say what the prospects were for recovering the passengers' bodies. The submersible disappeared Sunday as it descended on a tourist trip to the Titanic, and the vessel's safety concerns dating back to 2018 have surfaced.