https://www.eastbaytimes.com/2023/06/23/with-the-fate-of-titanic-bound-submersible-clear-focus-turns-to-cause-of-the-fatal-implosion/

By PATRICK WHITTLE | Associated Press

The search for a missing Titanic-bound submersible has become an investigation and salvage mission that will take an indefinite amount of time, officials said, as tributes from around the world poured in for the five people killed when the vessel imploded deep in the North Atlantic.