The first picture from the missing Titanic submarine search site has emerged - with rescue ships joining the frantic mission as oxygen runs down to critical levels.
Time is running out for the vessel and the crew on board may have less than 20 hours of oxygen left, based on the initial estimate of 96 hours, according to Rear Admiral John Mauger from the US Coast Guard, who spoke to the BBC.
Rescue ship Deep Energy, which is deploying remote operated submarines, has arrived to the middle of the Atlantic after a "banging" was heard from the Titan vessel on Tuesday, according to the Coast Guard.
