According to the U.S. Coast Guard, underwater noises have been identified in the vicinity of the search area for a missing submarine that was en route to the Titanic wreckage with five individuals on board.

Canadian P-3 aircraft detected these sounds, prompting a relocation of underwater operations in an attempt to locate their source.

Although no significant findings have emerged from the ongoing underwater operations, the Coast Guard stated that data from the P-3 aircraft has been shared with U.S. Navy experts for further analysis, which will inform future search plans.

Rear Admiral John Mauger of the Coast Guard described the search site as “incredibly complex,” with various metallic objects present in the water and surrounding area.

Naval experts have been engaged to aid in the identification and clarification of the noise source.

Authorities remain hopeful for the safety of the submersible’s passengers and intend to intensify search efforts by deploying additional vessels, remote-operated vehicles, and aerial surveillance within the next 24 hours.

The missing submarine carried Pakistani businessman Shahzada Dawood, his son Suleman, British tycoon Hamish Harding, French explorer Paul-Henri Nargeolet, and Stockton Rush, CEO of U.S.-based OceanGate Expeditions, the organizing company for the voyage.

Extensive search operations covering approximately 7,600 square miles, larger than the state of Connecticut, have been conducted by the U.S. and Canadian coast guards, as well as the U.S. Navy and Air National Guard.