News Search underway for Titanic tourist submarine with 70-96 hours of oxygen left: Live updates June 19, 2023June 19, 2023Francisco Guzman, USA TODAYComments Off on Search underway for Titanic tourist submarine with 70-96 hours of oxygen left: Live updates U.S. and Canadian teams were searching for a five-person submersible used to take groups including tourists to view the wreckage site of the Titanic.