If the 5 persons aboard the submarine, which went missing on Sunday, are not found and saved, they will run out of oxygen. The submarine was created to tour the sunken Titanic Ship. As a result, they still have enough oxygen for at least 30 hours.
Note that a small submarine was despatched to locate the Titanic Ship, which is located extremely deeply beneath the ocean’s surface.
The navy is currently helping in any way it can to locate these 5 people before they run out of oxygen. If they aren’t already parents, that is.
There’s still no update for the missing submarine and people but people are also wondering why there are lots of videos while they’re exploring that has been posted in social media.