
American media have published a clip of the documentary "The Titan Sub Disaster: Minute by Minute", in which the audio of the terrifying "knocking" sound that search and rescue teams heard during the search for the Titan ship is revealed for the first time.
It was these sounds that at the time, made them mistakenly believe that the people on board might still be alive.
Last June, five people (Hamish Harding, Paul-Henri Nargeolet, Shahzada Dawood, Suleman Dawood and OceanGate CEO Stockton Rush) died on board the submarine owned by the company "OceanGate", while diving to explore the wreck of Titanic.
The submarine lost contact with the base on June 18, and during efforts to locate the Titan and re-establish contact with it, the Canadian Air Force managed to pick up several "rhythmic crash sounds" every 30 minutes, which gave hope that they those on board may still be alive and trying to signal for help.
However, experts stressed at the time that they did not know their origin, and it was later concluded that the submarine had exploded on the day it disappeared.
According to the Wall Street Journal, the US Navy perceived a noise it thought was the explosion of the submarine Titan shortly after contact was lost.
The audio of that noise is also heard in the new documentary "The Titan Sub Disaster: Minute by Minute", which will be broadcast on March 6 and 7 on Channel 5 at 21:00.
The documentary aims to follow the details of the sinking of the Titanic to the wreckage of the Titanic and what lessons have been learned from the tragic loss of five lives.
Experts who have descended into the depths of the ocean have discovered other pieces of the submarine along with some human remains. However, experts warned against hoping that the bodies of the victims would be fully recovered due to the ocean's 'ferocious environment'.
Since then, significant amounts of debris have been found and handed over to authorities investigating the disaster.
Since this disaster, the company OceanGate has "suspended all exploration and commercial operations".