US Coast Guard launches probe into Titanic sub tragedy

WASHINGTON, D.C.: The US Coast Guard said on Sunday it had launched an investigation into the cause of the underwater implosion that destroyed the small submersible Titan, with the loss of all five people aboard during a dive to the Titanic wreck.

The Coast Guard said it had created a marine board of investigation (MBI), its highest level of probe, for this drama and ultimately tragedy in the North Atlantic that drew worldwide attention.