the DHS shared that crews heard banging sounds in 30-minute intervals while searching where the sub's five passengers disappeared on Sunday morning. Everything to Know About the 'Titanic'-Bound ...

U.S. Navy analysis determined that the banging noises were most likely either ... rescue mission gave the audio to producers of The Titan Sub Disaster: Minute by Minute, which is due to air ...

Soon after beginning its work, the US system registered the sound of the presumed ... began listening for the Titan almost immediately after communication with the sub was lost.

An curved arrow pointing right. Experts had warned about the dangers of the Titan before the submersible imploded, killing the five passengers on board. More from News Experts had warned about the ...