Close friends of those stranded on the missing Titanic tourist submarine are urging the rescue mission to continue, despite the suggestion they have run out of oxygen, as experts suggest the near-freezing temperatures could keep the five alive longer than predicted.
After the US Coast Guard estimated the vessel will have run out of oxygen at 1pm UK time on Thursday, an explorer friend of British billionaire explorer Hamish Harding said he believes several factors mean they could have longer than first thought.
