Noises Are Heard Underwater as Search Efforts Expand
New York Times
The U.S. Coast Guard said the “underwater noises” were being investigated. More vessels were racing to the North Atlantic to join the search for the missing Titan submersible, which is thought to have less than a day of oxygen left.
https://www.nytimes.com/live/2023/06/21/us/titanic-missing-submarine