Titanic sub crew believed to have died instantly in 'catastrophic implosion'

Debris found in search area consistent with catastrophic loss of the pressure chamber, says US Coast Guard

Passengers on the missing sub (clockwise from top left): Paul Henri Nargeolet; Shahzada Dawood and his son, Sulaiman Dawood; Stockton Rush; and Hamish Harding.

The US Coast Guard and the company which owns the submersible that disappeared during a journey to the wreck of the Titanic last weekend have confirmed that those on board have died.

"We now believe that our CEO Stockton Rush, Shahzada Dawood and his son Suleman Dawood, Hamish Harding, and Paul-Henri Nargeolet, have sadly been lost," OceanGate said in a statement.