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 ...

Audio of the noises detected during the search for the Titan submersible that ... U.S. Navy analysis determined that the banging noises were most likely either ocean noise or noise from other ...

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.