Underwater noises detected as massive search operation underway for submersible

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Underwater noises detected as massive search operation underway for submersible

News that noises have been picked up in the hunt for a missing submersible has offered a glimmer of hope that the five men on board are alive.

The sounds were recorded by sonar buoys in a massive rescue operation, which is racing against time to find the Titan in the middle of the Atlantic Ocean. It was lost on a deep-sea voyage to the Titanic wreck three days ago.

Underwater operations have been relocated to investigate the noises, the US Coast Guard has said, but so far they haven’t found anything.

And with oxygen supplies expected to run out at around 11:00 GMT on Thursday, the next few hours are critical.

US authorities say the noises were heard at half hour intervals for about four hours on Tuesday, according to reports by several outlets.

Deep-sea experts told the BBC it has spoken to say it is hard to determine what these noises might be without seeing the data – and the commander leading the search also confirmed the source of them is unknown.

But it is possible they could be short, sharp, relatively high frequency noises – made from within the vessel by hitting a hard object against the end of the sub.