A British submarine captain is reportedly missing after a submarine used to take tourists to the see the wreckage of the Titanic disappeared.
Hamish Harding is understood to be one of five people trapped underwater in the Atlantic Ocean, with the US Coastguard frantically trying to find and recover the missing vessel.
The British billionaire and explorer is thought to be part of the crew which was reported lost on Monday morning. The submarine has an oxygen supply which will last around 96 hours.