As rescuers expand their search for the “Titan,” the submersible lost at sea in the North Atlantic near the wreck of the Titanic earlier this week, the U.S. Coast Guard reported finding a “debris field” in the area.

“A debris field was discovered within the search area by an ROV near the Titanic,” the Coast Guard tweeted at 11:48 AM on Thursday, June 22. “Experts within the unified command are evaluating the information.”

DON’T MISS: Titan Submersible: Everything You Need To Know

The emergence of a debris field gives some credence to the “implosion” theory, which speculates that severe water pressure could trigger a massive implosion, a scenario that would lead to loss of life immediately for all five travelers on board the Titan. The vessel is is owned and operated by OceanGate Expeditions.

That number would include chief executive officer Stockton Rush, U.K. billionaire Hamish Harding, French adventurer Paul Henry Nargeolet, and Pakistani businessman Shahzada Dawood and his son, Sulaiman.

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The Titanic lies between 3,500-to-3,800 meters below the Atlantic 380 miles away from Newfoundland. If the Titan descended to 3,800 meters below sea level, the water pressure would be 376 times greater than the pressure generated by the Earth’s atmosphere, scientists say.

“The worst-case scenario is that it has suffered a catastrophic failure to its pressure housing,” said Stefan B. Williams, professor at the Australian Centre for Robotics, University of Sydney, in a June 20 analysis for the Conversation. “Although the Titan’s composite hull is built to withstand intense deep-sea pressures, any defect in its shape or build could compromise its integrity – in which case there’s a risk of implosion.”

The Titan reportedly had approximately a 96-hour oxygen supply, which would suggest the vessel could provide enough air for the crew through early Thursday, June 22.

That supply of oxygen could last longer if the crew found a way to conserve air, the Coast Guard noted in a June 21 press conference.

The Coast Guard will hold another press conference at 3 PM, EST on Thursday, June 22.