All five passengers on board the Titan submersible have died, the US Coast Guard has said.
This brings a sad end to an unprecedented deep-sea search which began on Sunday.
Rear admiral Mauger confirmed that five parts of the vessel were found approximately 1600ft from the bow of the Titanic wreck.
He told a news conference the debris discovered was consistent with a “catastrophic implosion”.
The rear admiral says he cannot confirm whether the bodies can be recovered, saying it is an “incredibly unforgiving environment”.
Offering the Coast Guard’s deepest condolences to the families, the rear admiral adds: “I can only imagine what this has been like for them”.
Earlier, the vessel operator OceanGate said: “Our hearts are with these five souls and every member of their families during this tragic time”.
The submersible went missing on Sunday after setting off to explore the wreck of the Titanic.