A deep-sea explorer says it would take a "miracle" to rescue those trapped on board the Titan submersible that has gone missing on a dive to the wreck of Titanic. Time is rapidly running out for the search and rescue operation in the North Atlantic, with the sub having just hours of oxygen left.
The sub, which had five people on board, lost contact with its mothership on Sunday. Since then, a major operation to locate it has been launched, but time is running out. Noises heard by rescuers have given some hope.
Dr Gallo told Good Morning Britain: "Maybe two days ago my hope was sliding downward rapidly, but then these noises appeared and there seems to be very credible sources there, credible and repeatable. We'll see how that pans out but everything is happening very quickly, so we have a race against time.
