The U.S. Coast Guard said Sunday it is leading an investigation into the loss of the Titan submersible that was carrying five people to the Titanic, to determine what caused it to implode.
Capt. Jason Neubauer, chief investigator, said the salvage operations are ongoing, and they have mapped the accident site. He did not give a timeline for the investigation. Neubauer said the convening of a Marine Board of Investigation is the highest level of investigation conducted by the U.S. Coast Guard.