Eerie Audio of Titan Sub Implosion Believed to Be Caught on Recording: Coast Guard Releases New Clip from Investigation

After much discussion about whether other noises were heard, it is thought that a recently released audio recording captured the very last moments of the doomed Titan submersible when it imploded deep in the Atlantic Ocean in 2023.

On Friday, February 7, the U.S. Coast Guard released the approximately 20-second video as part of their continuing inquiry into the Titan’s demise.

During a dive to the Titanic wreckage off the coast of Canada, the recording contains a menacing whooshing sound that appears to be the remnants of the Titan’s catastrophic destruction, which killed all five of the passengers.

The Coast Guard said the audio, captured about 900 miles from the sub by a National Oceanic and Atmospheric Administration device, records the “suspected acoustic signature” of the implosion on June 18, 2023.

In the days of initial searching after the Titan was lost, headlines swirled about sounds of banging nearby, which might indicate the four passengers and pilot were somehow still alive, miles underwater.

A documentary later featured audio of supposed knocking heard in the area of the sub, though the Coast Guard has stressed that any such noises had to be unrelated to the Titan since it imploded during its dive.

Last year, the Coast Guard convened a multi-day investigative hearing into what went wrong.

Among the new details were the final messages sent by the Titan’s crew and passengers as well as photos from the debris discovered afterward.

The five victims included adventurers Hamish Harding and Paul-Henri Nargeolet; father and son Shahzada and Suleman Dawood; and pilot Stockton Rush, who co-founded OceanGate, the company operating the Titan.

“[Harding] just was loving to explore and push the limits of humans and do conservation,” Aaron Newman, who had been a mission specialist on the Titan, previously told PEOPLE. “So it wasn’t just adventure and exploration, but he did a lot around conservation as well and helping the planet.”