June 22, 2023

By Helen Regan, Adam Renton, Rob Picheta, Aditi Sangal, Elise Hammond, Matt Meyer, Tori B. Powell and Maureen Chowdhury, CNN

Our live coverage of the Titan submersible tragedy has moved here.

Film director James Cameron said Thursday he's worried that the Titan submersible's implosion will have a negative impact on citizen explorers.

Some background: Stockton Rush, the CEO of OceanGate Expeditions, which operated the Titan submersible, and who died in the implosion, had spoken about his antipathy to regulations.

“At some point, safety just is pure waste,” Stockton told journalist David Pogue in an interview last year. “I mean, if you just want to be safe, don’t get out of bed. Don’t get in your car. Don’t do anything.”

From CNN's Sabrina Souza

James Cameron, director of the hit 1997 film “Titanic,” says news of the Titan submersible's explosion "certainly wasn't a surprise."

Cameron, who has made 33 dives to the wreckage himself, told CNN's Anderson Cooper that when he first heard the news of the Titan incident Monday morning, he connected with his small community in the deep submergence group and found out within about a half-hour that the submersible had lost communication and tracking, simultaneously.

Cameron said he did more digging and got some additional information that seemed to confirm that the submersible had imploded.

He said false-hopes kept getting dangled as search teams looked for the missing passengers over the following days.

He expressed condolences for the families of the passengers.

From CNN staff

The five passengers on the Titan submersible that was diving 13,000 feet to view the Titanic on the ocean floor died in a "catastrophic implosion," authorities said Thursday, bookending an extraordinary five-day international search operation near the site of the world's most famous shipwreck.

The tail cone and other debris were found by a remotely operated vehicle about 1,600 feet from the bow of the Titanic, deep in the North Atlantic and about 900 east of Cape Cod, Massachusetts.

“This is an incredibly unforgiving environment down there on the sea floor and the debris is consistent with a catastrophic implosion of the vessel,” US Coast Guard Rear Adm. John Mauger, the First Coast Guard District commander, told reporters.

Here's what we know:

From CNN's Jeremy Diamond

The White House thanked the US Coast Guard and international partners for their search and rescue efforts for the submersible that went missing on its way to the Titanic wreckage.

Earlier Thursday, the Coast Guard thanked experts and agencies from all over the world for assisting in the effort, calling it a “huge international” and “interagency” search.

The White House spokesperson also expressed sympathy for the families of the five passengers onboard the submersible.

“Our hearts go out to the families and loved ones of those who lost their lives on the Titan. They have been through a harrowing ordeal over the past few days, and we are keeping them in our thoughts and prayers," the spokesperson said.

From CNN's Sugam Pokharel, Francesca Giuliani-Hoffman, Mostafa Salem in Abu Dhabi and Sofia Cox in Atlanta

The Titan submersible bound for the Titanic that went missing on Sunday with five people on board suffered a “catastrophic implosion,” US Coast Guard Rear Adm. John Mauger said Thursday.

Now those who knew the passengers are grappling with their tragic loss and some have sent messages of condolences as their legacies are remembered.

Engro Corporation Limited, where Pakistani businessman Shahzada Dawood was vice chairman, issued a statement on the deaths of Dawood and his son Suleman — who were among the five people on board the Titan submersible.

Dubai-based Action Aviation, the company owned by passenger Hamish Harding released a statement on behalf of his family.

“Today, we are united in grief with the other families who have also lost their loved ones on the Titan submersible," the statement read. "Hamish Harding was a loving husband to his wife and a dedicated father to his two sons, whom he loved deeply. To his team in Action Aviation, he was a guide, an inspiration, a support, and a Living Legend."

The statement went on to praise the efforts made to search for the Titan sub.

"We know that Hamish would have been immensely proud to see how nations, experts, industry colleagues and friends came together for the search, and we extend our heartfelt thanks for all their efforts. On behalf of the Harding family and Action Aviation, we would like to politely request privacy at this incredibly difficult time," it said.

The family of French diver Paul-Henri Nargeolet said he will "be remembered as one of the greatest deep-sea explorers in modern history."

The statement signed by Nargeolet’s children and wife said that they hope people think about Paul-Henri and his work when they think about the Titanic, "but what we will remember him most for is his big heart, his incredible sense of humor and how much he loved his family. We will miss him today and every day for the rest of our lives."

His stepson, John Paschall, described him as an “incredible stepfather” and someone who was caring and had a great sense of humor. He recalled how his mother and Nargeolot drove across the country to attend his college graduation in 2014 after their flight got canceled.

From CNN's Oren Liebermann

The US Navy detected an acoustic signature consistent with an implosion on Sunday in the general area where the Titan submersible was diving in the North Atlantic when it lost communication with its support ship, according to a senior Navy official.

The Navy immediately relayed that information to the on-scene commanders leading the search effort, the official said Thursday, adding that information was used to narrow down the area of the search.

But the sound of the implosion was determined to be “not definitive,” the official said, and the multinational efforts to find the submersible continued as a search and rescue effort.

The Wall Street Journal was the first to report about the acoustic signature picked up by the Navy.

Audio of the implosion was picked up by a network of sensors as part of an underwater Navy acoustic listening system, said the official, who declined to go into more detail about the secret system. The network of sensors allowed the Navy to zero-in on a possible location of the noise, providing search teams with a more refined area.

The Navy also helped analyze the audio signatures of banging and other acoustic data that were heard throughout the search efforts. Those were likely some form of natural life or sounds given off by other ships and vessels that were part of the search effort, the official said.

A single vessel, if properly equipped, and remotely controlled vehicles on the seafloor would likely be capable of recovering the wreckage of the Titan submersible, Capt. Mark Martin, a salvage master and deep submergence pilot, said Thursday.

The ship would need a crane with a wire that can reach a depth of 4,000 meters (about 2 and a half miles), which can be found on many vessels involved in offshore gas and oil construction, Martin said in an interview with CNN's Jake Tapper.

Recovery crews will also need one or two remotely operated vehicles, or ROVs, which have already played a key role in the search for signs of Titan, the captain said. The ROVs are large, powerful machines that can be controlled from the vessel above them.

The ROVs will work in concert with the crane to scoop pieces of the sub into large "recovery baskets," which Martin said look like half of a shipping container made of mesh.

ROVs will pick up pieces with their arms and move them into baskets, or help attach pieces to straps for the crane, which will lift pieces to the surface, he said.

From CNN’s Lisa France

James Cameron, who directed the hit 1997 film "Titanic" and has made 33 dives to the wreckage, said he saw some similarities between the Titan tragedy and the sinking of the famous ship it was bound for.

He added, "And with a very similar tragedy where warnings went unheeded to take place at the same exact site with all the diving that's going on all around the world I think it's just astonishing. It's really quite surreal."