Submersible Titan lost contact with its mother ship after two hours.
All five people on board the submersible have tragically died, confirmed by OceanGate.
Rescue teams were in a race against time to find the ship and its crew.
The submersible had emergency oxygen supply for four days, making the rescue operation critical.
The debris discovered is consistent with the catastrophic implosion of the sub, according to the US Coast Guard.
The loss of the pressure chamber is believed to be the cause of death for the five passengers.
Rear Admiral John Mauger from the US Coast Guard described the sea floor as an incredibly unforgiving environment.
Search efforts in the area will continue, but prospects cannot be disclosed at this time.