Titanic sub debris: Photos give 1st look of implosion wreckage [Video]

PORTLAND, Maine — Debris from the lost submersible Titan has been returned to land after a fatal implosion during its voyage to the wreck of the Titanic captured the world’s attention last week.

The return of the debris to port in St. John’s, Newfoundland and Labrador, is a key piece of the investigation into why the submersible imploded, killing all five people on board. Twisted chunks of the 22-foot submersible were unloaded at a Canadian Coast Guard pier on Wednesday.

The Canadian ship Horizon Arctic carried a remotely operated vehicle, or ROV, to search the ocean floor near the Titanic wreck for pieces of the submersible. Pelagic Research Services, a company with offices in Massachusetts and New York that owns the ROV, said on Wednesday that it has completed offshore operations.

Pelagic Research Services’ team is “still on mission” and cannot comment on the ongoing …