Sky News reports that the debris field recently found near the wreck of the Titanic is material from OceanGate's Titan submersible. Four passengers and a pilot were aboard when it lost contact with its mothership on a Sunday morning dive, and OceanGate posted a statement in which it said that all aboard the vessel are believed dead.

Earlier, Sky News posted a video explaining why the debris field implied the loss of the submarine.
BREAKING: Friend of two of the men missing on board the submersible confirms the debris found was "a landing frame and a rear cover from the submersible", after receiving WhatsApp message live on Sky News. Latest here: https://trib.al/dQ7oOuO