Wreck of the RMS Titanic

Canadian authorities said Friday they would launch an investigation into the loss this week of the Titan submersible along with five people onboard during a dive to the Titanic wreck.

The Canadian-flagged Polar Prince cargo vessel towed the Titan out to sea last weekend but lost contact with it about an hour and 45 minutes after the submersible launched into the ocean depths.

All five people aboard a submersible missing near the wreck of the Titanic died - likely in an instant - after their vessel suffered what the US Coast Guard said Thursday was a "catastrophic implosion" in the ocean depths.

The search for the missing submersible on an expedition to view the wreckage of the Titanic neared the critical 96-hour mark Thursday when breathable air is expected to run out, reaching a vital moment in the intense effort to save the five people aboard.

A Canadian military surveillance aircraft detected underwater noises as a massive search continued early Wednesday in a remote part of the North Atlantic for a submersible that vanished while taking five people down to the wreck of the Titanic.

There are five people in the submarine.
Contact with the small submarine was lost about an hour and 45 minutes after it dived on Sunday. A rescue operation has been launched, but so far there is no sign of the submarine, the BBC reported.
As of Monday afternoon, the crew were thought to have had about four days' worth of oxygen left.

Rescue teams raced against time on June 20 in their search for a tourist submersible that went missing near the wreck of the Titanic with five people on board.

One of the passengers on board has been identified as British businessman Hamish Harding, whose aviation firm had posted on social media about his expedition.