The first British man to dive to the Titanic has warned time is running out for five onboard a submersible that has gone missing during a dive to the wreck.
British billionaire explorer Hamish Harding and renowned French diver Paul-Henri Nargeolet are feared to be onboard the missing Titanic tourist submarine somewhere in the Atlantic Ocean.
Dik Barton, who is University of Sunderland lecturer and has made 22 dives to the wreck while working with RMS Titanic, Inc, said the environment is hostile with "no means of escape".
