OTTAWA : Presumed human remains and debris from the tourist submersible crushed to pieces in an undersea implosion that killed all five people aboard were recovered from the ocean bottom and brought ashore to Canada on Wednesday, the U.S. Coast Guard said.

The possible remains and shattered bits of the submersible Titan, destroyed while diving to the century-old wreck of the Titanic, were carried to St. John’s, Newfoundland, about 400 miles (650km) north of the accident site, by the Canadian-flagged vessel Horizon Arctic, according to the Coast Guard.

The evidence will be transported by a Coast Guard cutter to a U.S. port for analysis and testing by a marine board of investigation, convened by the Guard this week to conduct a formal inquiry into the loss of the Titan, the agency said.

U.S. medical professionals also “will conduct a formal analysis of presumed human remains that have been carefully recovered within the wreckage at the site of the incident,” the Coast Guard statement added.

The nature and extent of the possible remains recovered from the site were not specified.

Video from the Canadian Broadcast Corp showed what appeared to be the nose of the submersible and other shattered fragments wrapped in white tarp pulled up by a crane from the deck of the Horizon Arctic on Wednesday morning.

Footage also showed a shattered piece of the Titan’s hull and machinery with dangling wires being taken off the ship at St. John’s, where the expedition to the Titanic had begun.