A North East university lecturer - who was the first Brit to dive to the Titanic - has paid tribute to one of the victims who died onboard the Titan submarine.
Paul-Henri Nargeolet died along with Stockton Rush, Shahzada Dawood, his son Suleman, Hamish Harding following a "catastrophic failure" close to the wreckage in the North Atlantic.
Sunderland University lecturer Dik Barton, who previously dived the Titanic wreck with f ormer French navy officer Nargeolet, described him as an "extraordinary individual" and "iconic" underwater explorer.
