Missing submarine: Search parties hear knocking signals

Euronews Missing submarine: Search parties hear knocking signals Article by Euronews • 2 hrs ago Are the five occupants of the submarine that went missing off the North American coast still alive? According to a US government note, the search parties hear recurring knocks recorded by sonar devices. Titanic Submarine: 40 hour oxygen supply Submerged to the Titanic: Where is the submarine with billionaire Harding and four other people on board? The submersible, named Titan, had 96 hours of oxygen when it began its journey on Sunday morning, that is until Thursday morning. It had set out with five people to dive to the wreck of the Titanic, which sank in April 1912. In addition to the captain, the British billionaire and adventurer Hamish Harding, two members of a Pakistani entrepreneurial family and a _Titanic_ researcher are on board. US and Canadian Coast Guard ships and planes, as well as cargo ships, are involved in the search.