![This undated image provided by OceanGate Expeditions in June 2021 shows the company's Titan submersible.](https://assets1.cbsnewsstatic.com/hub/i/r/2023/06/22/ce20b314-accc-4946-b27b-734bbaaf869f/thumbnail/640x360/3f31e43de41f1ff81a093b4144309ea7/ap23172586811546.jpg?v=57e8061b2038d609da26e467de5ddfb8#)
Debris from sub found 1,600 feet from Titanic after "catastrophic implosion"
The U.S. Coast Guard said the sub experienced a "catastrophic loss of the pressure chamber," and confirmed that a debris field found on the sea floor was pieces of the missing sub.