Families of those on board the Titanic submarine are 'clutching at miracles' but there is still hope they are still alive, one expert suggests.
Channel 5 were broadcasting its documentary after it was confirmed the debris field found earlier near the wreck of the ancient ship has been confirmed as belonging to the missing Titan submersible, with all five passengers declared dead.
Jacquie Goddard, a correspondent for the Times in America says there is a chance those on board have conserved oxygen – despite reports the supply has already run out.
