US and Canada start the process of determining how the Titanic-bound submersible

Authorities from the U.S. and Canada began the process of investigating the cause of the fatal Titan submersible implosion even as they grappled with questions of who was responsible for determining how the tragedy unfolded.
A formal inquiry has not yet been launched because maritime agencies are still busy searching the area where the vessel was destroyed, killing all five people aboard, the U.S. Coast Guard said Friday. Debris was located about 3,810 meters underwater, several hundred feet away from the Titanic wreckage it was on its way to explore.
It was not entirely clear Friday who would have the authority to lead what is sure to be a complex investigation involving several countries. OceanGate Expeditions, the company that owned and operated the Titan, is based in the U.S. but the submersible was registered in the Bahamas. OceanGate is based in Everett, Washington, but closed when the Titan was found. Meanwhile, the Titan’s mother ship, the Polar Prince, was from Canada, and those killed were from England, Pakistan, France, and the U.S.