THE TITANIC SUBMERSIBLE: SUMMARY
According to BBC
The US Coast Guard commander leading the search for the missing Titanic sub tells the BBC the crew may have around 20 hours of oxygen left.
Rear Admiral John Mauger says it's a very complex and difficult mission, with people working around the clock.
Earlier, the US Coast Guard said a noise heard in the search had given them "a target, a focus".
Mauger says they are working closely with leading acoustic experts to make sure they understand what that noise signature is.
More vessels are being sent to the search site, off the North American coast.
Contact with the sub - which has five people on board - was lost on Sunday as it made a 3,800m descent to the Titanic wreck.
Edited by Marianna Brady
Who is on board?
If you're just catching up on this story, here's a quick reminder of who the five passengers onboard are:
Hamish Harding, 58, a British adventurer who has previously been to space and - multiple times - to the South Pole
British businessman.
Shahzada Dawood, 48, a member of one of Pakistan's richest families and a supporter of two charities founded by King Charles.
His son Suleman Dawood, a 19-year-old student.
Paul-Henry Nargeolet, 77, a former French Navy diver who has reportedly spent more time at the Titanic wreck than any other explorer and was part of the first expedition to visit it in 1987.
Stockton Rush, 61, the chief executive of OceanGate, the firm that operates the Titanic voyages on the lost submersible.
More..
- More noises have been heard in the search for the missing Titanic sub, the US Coast Guard says
- Capt Jamie Frederick says they still don't know what the noises are - but teams are looking in that area
- The search is being expanded - the surface search is now twice the size of the US state of Connecticut, and the sub-surface search is 2.5 miles deep
- Capt Frederick also tells reporters it's still a search and rescue operation, adding: "We have to remain optimistic and hopeful"
- The crew are thought to have less than 20 hours of oxygen left, based on a previous estimate
- Contact with the sub - which has five people on board - was lost on Sunday as it made a 3,800m descent to the Titanic wreck.
Only a few days ago, CBC journalist Kenny Sharpe took these photos at St John's.
Writing on Twitter, Sharpe says he didn't know what he was photographing at the time.
It turned out to be the Titan submersible being towed out to sea.
The images show the small sub being pulled along by the Polar Prince ship, as the crew heads towards the site of the Titanic wreck.
BBC.