AIRCRAFT DETECTS BANGING SOUNDS COMING FROM THE TITANIC SHIPWRECK SITE AS RESCUERS TRY TO LOCATE TEAM OF 5 TRAPPED IN A SUBMERSIBLE SOME 12,000 FEET UNDERWATER.(PHOTOS).

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AIRCRAFT DETECTS BANGING SOUNDS COMING FROM THE TITANIC SHIPWRECK SITE AS RESCUERS TRY TO LOCATE TEAM OF 5 TRAPPED IN A SUBMERSIBLE SOME 12,000 FEET UNDERWATER 

A Canadian Aircraft picked up the sounds near the disappearance site, a leaked memo suggests. The Explorers Club also posted that there have been 'likely signs of life detected.’

Rescue crews are trying to locate the sub that went missing Sunday on its way to the Titanic wreck site 

Hope of finding the Titan five - the crew on board a missing sub on an expedition to the Titanic shipwreck - have grown after rescue groups reported 'likely signs of life' and 'banging sounds.'

A Canadian Aircraft, part of the enormous search mission looking for the missing Titanic tourists, heard 'banging' at 30-minute intervals in the area the submarine disappeared.

The banging was noted in emails exchanged with the US Department of Homeland Security and seen by Rolling Stone.

Richard Garriot de Cayeux, President of The Explorers Club, confirmed in a Tuesday night social media post that 'there is cause for hope.' 

In a statement he said: 'We have much greater confidence that 1) There is cause for hope, based on data from the field - we understand that likely signs of life have been detected at the site.' 

It's unclear when the banging sounds were heard, and officials have not confirmed the reports or said they have found the crew that has been stuck in the deep Atlantic Ocean since the submersible launched Sunday and quickly lost contact with others. 

The DHS memo on the banging sounsd read: 'RCC Halifax launched a P8, Poseidon, which has underwater detection capabilities from the air,' the DHS memo read, 'reported a contact in a position close to the distress position. 

'The P8 heard banging sounds in the area every 30 minutes. Four hours later additional sonar was deployed and banging was still heard.'

The timing - or cause - of the banging is not revealed by the memo.

A DHS announcement also stated that 'the Joint Rescue Coordination Centre is working to find an underwater remote-operated vehicle through partner organizations to possibly assist.' 

A massive search operation remains underway to find the missing OceanGate submersible, the Titan, after it lost contact with the mothership during its descent to the shipwreck on Sunday morning.  

The crew only have enough oxygen to last them until Thursday morning but that is just one dilemma. They are bolted in from the outside meaning that even if the vessel manages to make it to the ocean surface, if their communication system is not functioning they will still be trapped in the air tight submersible. The cramped space only allows for sitting on the small deck inside the submersible with just a small window to peek out into the darkness below.

The pressure exerted by the water force at a depth of 12,000 feet coupled with the freezing temperatures, a build up of carbon dioxide and the fact that the small toilet was not meant for that much use - one can only image the fate of those trapped in the small submersible.

Some experts have speculated that the pressure of the water below may have snapped the vessel and the crew members may already be dead.

More photos below.