After it was announced that the Titanic submarine had vanished under the waves, news of its disappearance quickly went viral online.

Five submarine passengers were last seen on Sunday. Without oxygen, they will die unless they can be rescued from the Titanic debris. Therefore, they have adequate oxygen for at least 30 hours.

Who are the passengers inside the submarine?

British businessman Hamish Harding, Pakistani businessman Shahzada Dawood and his teenage son Suleman, and French adventurer Paul-Henri Nargeolet are all confirmed passengers. The CEO of OceanGate, the corporation that owns and runs the ship, Stockton Rush, is also on board.

The voyage was promoted by OceanGate as a chance to “become one of the few to see the Titanic with your own eyes.” According to the company’s website, the cost of reserving a cabin aboard the ship is $250,000. However, OceanGate stressed that the dives are not for recreational purposes but rather for scientific research.

Hamish Harding

According to its website, Action Aviation, founded by Harding, offers aircraft to Fortune 100 companies, worldwide enterprises, heads of state, and entertainment and sports figures.

Shahzada and Suleman Dawood

Shahzada Dawood, 48, is Dawood Hercules’ vice chairman. According to his SETI Institute biography, Dawood Hercules is part of the century-old Dawood Group. According to the New York Times, Dawood inherits one of Pakistan’s greatest fortunes.

According to DailyMail UK, Suleman Dawood is 19. DH Group & Engro Corporation, part of the Dawood Hercules Group, says he likes science fiction, Rubik’s Cubes, and volleyball.

Paul-Henri Nargeolet

The OceanGate website calls Nargeolet a Titanic expert. “Titanic’s Greatest Explorer,” he has led six journeys to the ship’s tragedy site, the business reported. He directs underwater research for RMS Titanic, an American corporation that owns the wreck’s salvage rights and runs displays using ship items. The corporation reports 30 million exhibit visitors.

Stockton Rush

Rush, the expedition’s CEO, piloted the missing Titan expedition. According to his OceanGate profile, Rush was the youngest DC-8 Type/Captain’s rated pilot at the United Airlines Jet Training Institute aged 19.