Titanic tourist sub missing: 40 hours of oxygen left, says US Coast Guard

Titanic tourist sub missing: 40 hours of oxygen left, says US Coast Guard.

Five people trapped inside submersible have roughly 40 hours of breathable air left, US Coast Guard warns . . . .

Five people are missing on board a submersible tourist vessel touring the Titanic wreck

The submersible has about 96 hours of emergency oxygen on board, enough to last until Thursday morning

It is thought the vessel set sail at 4am before losing contact at around 5.45am

Those missing include British explorer Hamish Harding, a British-based Pakistani businessman Shahzada Dawood and his son, Suleman

The other are French submersible pilot, Paul-Henri Nargeolet, and chief executive of OceanGate Expeditions, Stockton Rush

Coast Guard says in early evening update that passengers have around 40 hours of breathable left (see post at 6.13pm)

Search 'expands to deeper waters', US Coast Guard says (see post at 3.09pm)

Friends of missing passengers 'very, very worried (see post at 2.35pm)

One former passenger has said there is ‘no escape’ from the vessel (see post at 9.53am)