Missing Titanic submersible live updates: Texts show OceanGate CEO dismissed concerns
Five people, including the company CEO, were aboard the sub when it imploded.
All passengers are believed to be lost after a desperate dayslong search for a submersible carrying five people that vanished while on a tour of the Titanic wreckage off the coast of Newfoundland, Canada.
The 21-foot deep-sea vessel, operated by OceanGate Expeditions, lost contact about an hour and 45 minutes after submerging on Sunday morning with a 96-hour oxygen supply. That amount of breathable air was forecast to run out on Thursday morning, according to the United States Coast Guard, which was coordinating the multinational search and rescue efforts.
Latest headlines:
- RCMP to investigate the deaths aboard Titan sub
- US taxpayer cost for search and rescue may be $1.5 million, expert says
- OceanGate CEO claimed sub was safer than scuba diving, texts show
- OceanGate co-founder defends development of submersible
- Sub's carbon-fiber composite hull was the 'critical failure,' James Cameron says
- Probe seeks answers on why Titanic sub imploded
- Navy likely detected sound of the implosion on Sunday: Official
- All lives believed to be lost: OceanGate
New details emerge about how the missing sub navigated the ocean
The submersible that was reported missing while on a tour of the underwater wreckage of the Titanic is an unorthodox vessel with a relatively unproven history, according to company press materials and experts familiar with underwater vehicles.
News of the vessel's disappearance prompted a flurry of interest in the company OceanGate Expeditions and its deep-sea submersible called the Titan.
The company's founder and CEO, Stockton Rush, who is one of the five people aboard the missing vessel, manned the Titan's first "validation dive" to 4,000 meters in 2018, according to the company. The company then began offering tourists the opportunity to dive to the depths of the Titanic in the following years, selling tickets for the 2023 journey for $250,000.
Here's what we know about how the submersible operates.
-ABC News' Peter Charalambous
'Banging' picked up by sonar in search area, source says
A source familiar confirmed to ABC News that there were reports of "banging" that were picked up by sonar in the search area on Tuesday morning, but nothing has yet been found.
The U.S. Coast Guard had said early Wednesday that an aircraft with sonar capability "detected underwater noises in the search area," but remotely operated vehicles were unable to find the origin of the sound.
-ABC News' Luke Barr
Titanic mapping company 'fully mobilized' to help
Magellan, an international exploration company that digitally mapped the Titanic wreckage last year, said Wednesday that it is "ready to support" the search for the missing submersible and is "fully mobilized to help."
The U.K.-based company told ABC News that it was contacted by the submersible’s operator, OceanGate Expeditions, early Monday and "immediately offered our knowledge of the specific site and also our expertise operating at depth considerably in advance of what is required for this incident."
"We have been working full-time with U.K. and U.S. agencies to secure the necessary air support to move our specialist equipment and support crew," Magellan said in a statement.
When asked for comment about media reports that U.S. authorities have failed to give Magellan the necessary permits to participate in the search, the company told ABC News it "does not not wish to comment on any specific media report."
-ABC News' Emma Ogao
'Underwater noises' detected but search 'yielded negative results,' US Coast Guard says
The U.S. Coast Guard announced via Twitter early Wednesday that a Canadian aircraft with sonar capabilities had "detected underwater noises in the search area."
Remotely operated vehicle operations (ROV) were then relocated "in an attempt to explore the origin of the noises," according to the Coast Guard.
"Those ROV searches have yielded negative results but continue," the Coast Guard tweeted.
Former Navy sub captain on rescue options
Rescuers racing against the clock to save the five people trapped in a tourist submersible nearly two miles deep in the Atlantic Ocean are facing major obstacles that could make saving the people onboard extremely difficult, according to a former U.S. Navy submarine commander.
Retired Capt. David Marquet told ABC News on Monday that this type of rescue operation is complicated because there aren’t nearby U.S. or Canadian underwater vessels that can go as deep as the Titanic wreckage, which sits 13,400 feet below the ocean’s surface. Also, the ocean is pitch black at that depth.
"The odds are against them," Marquet said. "There's a ship in Boston that has this ability to either lower cable and connect to it or have a claw. It's still a thousand miles away."
Even if a vessel was able to locate the submersible and lower a cable, it’s extremely difficult to safely navigate the waters and attach it, according to Marquet.
"You've got to get it exactly right," he told ABC News. "It's sort of like ... getting one of those toys out of those arcade machines. In general, you miss."
Rescuers do have one advantage, Marquet said, as weather conditions off the coast of Newfoundland are not rough and will not disturb any boat or vessel there.
Marquet added that if the five people aboard are still alive, they would be asked to sleep to conserve their oxygen.
"We would put the vast majority of the crew to sleep because that's when you're using the least amount of oxygen and you're expelling the least amount of carbon dioxide," he said.
-ABC News' Sam Sweeney and Ivan Pereira