Experts have recovered "presumed human remains" from the remains of the Titan sub that imploded during a dive to the Titanic wreck killing five people, according to the US Coast Guard.
"United States medical professionals will conduct a formal analysis of presumed human remains that have been carefully recovered," the agency said in a statement after parts of the wreckage were recovered from the ocean floor near the remains of the ship.
British adventurer Hamish Harding and father and son Shahzada and Suleman Dawood died on board the deep-sea vessel, alongside OceanGate Expeditions' chief executive, Stockton Rush, and French national Paul-Henri Nargeolet.
Pictures emerged of large pieces of debris from Titan after they were transported to shore in St John's, eastern Canada.
The images showed a crane unloading the wreckage from the Horizon Arctic ship in the city's harbour.
Royal Canadian Mounted Police said they are looking into the five deaths.
Safety investigators from the Transportation Safety Board of Canada made inquiries on Titan's main support ship, the Polar Prince, after it docked in St John's harbour on Saturday.
The Titan submersible lost contact with tour operator OceanGate Expeditions one hour and 45 minutes into the two-hour descent to the wreckage, with the vessel reported missing eight hours after communication was lost.
