Five people from the Polar Prince were on board the Titan and approximately 1 hour and 45 minutes after the submersible began its descent, the support vessel lost contact, according to the Transportation Safety Board of Canada (TSB). Titanic Submarine Tragedy: Canada Launches Probe Into Titan Submersible Implosion That Killed Five.
The US Navy detected the likely implosion of the Titan submersible on underwater sound monitoring devices shortly after it disappeared in the Atlantic Ocean during a trip to the wreck of the Titanic, the Wall Street Journal reported Thursday.