Canada's Transportation Safety Board launches probe into Titan loss

Canada's Transportation Safety Board on Friday announced a probe into the loss of the Titan submersible, which imploded on a deep-sea voyage to the wreck of the Titanic, killing all five on board.

In a statement, the board said it was launching "a safety investigation regarding the circumstances of this operation" because the Titan's surface support vessel, the Polar Prince, was a Canadian-flagged ship.