After one hour and 45 minutes after descending under the surface of the water, the tourist submarine known as Titan has lost communication with the surface ship.
The pounding noises were reported by Canadian planes searching for submarines on June 20, 2023; however, the origin of the sounds has not been determined at this time.
On June 18, 2023, the submarine set off on its journey to the location of the Titanic disaster with a restricted oxygen supply that was expected to run out by June 22, 2023.