The UK-based Pakistani businessman and his teenage son who are among the five people trapped on the submarine that went missing near the Titanic wreckage have been pictured today.
Shahzada Dawood, 48, a board member of the Prince's Trust charity, and his son Sulaiman Dawood, 19, were on board the tiny underwater craft taking paying tourists to view the famous wreck 12,500ft underwater when they lost signal in the dark depths of the Atlantic Ocean, 370 miles off the coast of Newfoundland, Canada.
Their desperate family, including Shahzada's wife Christina and daughter Alina, are now enduring an agonising wait for any news of the pair - hoping in vain that they could somehow be found thousands of feet underwater before the oxygen onboard runs out in around 50 hours.
But former Royal Navy commander Ryan Ramsey, 53, today warned that there is 'no way' of rescuing the five crew members - including British billionaire Hamish Harding - if the tiny vessel is still thousands of feet below sea level because the technology required 'doesn't exist'.
However, the vessel could well be floating on the surface of the water, meaning that it will be easier for rescue crews to locate the submarine before the air runs out.