Titanic tourist submersible: desperate search for sub missing with five onboard, The Titanic

French expert and British explorer believed to be among five onboard submersible missing in north Atlantic since Sunday

Titanic sub: Nine unanswered questions in deadly Titan implosion

Rescue efforts underway after Titanic tourist submersible goes missing - ABC News

Titanic submersible missing: More noises heard from search area as hours run short for rescuers

OceanGate, company behind missing Titanic tourist sub, once subject of lawsuit over safety complaints

Debris field' discovered near Titanic in search for missing sub, US Coast Guard says

False claim missing sub was found without passengers

Desperate search for missing sub viewing Titanic with five onboard

Titanic Sub Missing Live Updates: Search Intensified, Oxygen And Ration Limited

Titan sub search mission ends in tragedy as rescuers outline next steps for recovery, World, News

Desperate search for missing Titanic tour submersible: Lives and hope hang in the balance