hamish harding missing

58 years old Hamish Harding is the chairman of an aircraft firm.

Hamish Harding has flown to space and has three World Records.

The trip to Titanic's wreckage was the latest one in a string of adventures.

Mr. Harding said on Facebook that the destination of the Titanic wreck, a ship had set off from the city of John's in Newfoundland, Canada.

His stepson said in a recently deleted post on social media that he "has gone missing on the submarine.

On Sunday the sub had successfully launched and Harding was "currently diving ".

Founder of British tour operator, Patrick Woodhead said that Harding was an "incredible " aviation explorer.

Mr Harding's family's prayers and blessings were with him.