Titanic sub latest: Rescue mission hits critical 96-hour deadline as oxygen ‘runs out’

The rescue mission for the missing submersible exploring the wreck of the Titanic has reached a critical point, with the supply of oxygen on board now believed to have run out.

The US Coast Guard said the vessel had around 96 hours of oxygen left when it went missing on Sunday, estimating the supply would run out at around midday UK time today.

More rescue ships arrived today to aid in the search for missing Titan, with hopes pinned on the arrival of a French underwater robot called Victor 6,000.

It comes after US Coast Guard officials on Wednesday said they remained “hopeful” after sonar detected unidentified “underwater noises”.

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