A remotely-operated vehicle deployed by a Canadian ship found five major parts of the submersible on Thursday.

It found the debris field on the ocean floor, only 1,600ft (480m) from the bow of the Titanic wreck.

The parts found included the sub's tail cone and a landing frame, as indicated on the image above.

If you're just joining us, authorities have confirmed that the Titan tourist sub imploded during its descent, killing all five men on board.

Their families have released statements and condolences have been flowing in from around the world.

Here's the latest:

• The US Coast Guard says it's still not known when or where the implosion happened
• However major parts of the sub were found on the sea floor, less than 500m from the Titanic shipwreck

• The discovery of debris like the tail cone and two broken ends of its pressure hull leadsofficials to believe a “catastrophic implosion” took place
• The US Navy had also detected sounds “consistent with an implosion or explosion" shortly after the Titan lost contact on Sunday, an official told media in the last few hours
• That information had not been considered "definitive" at the time but was passed on to search commanders
• Banging noises heard earlier this week have been attributed by experts to other ships in the area
• The search is drawing to an end - and the US Coast Guard has already begun "demobilising personnel"

A story that's gripped the entire world for the past few days has come to a sad conclusion, with news that all five on board the sub are dead.

In this extra episode of BBC podcast Newscast, hear from our North America correspondent Nomia Iqbal, who's in Newfoundland - where the submersible set off from.

We've also spoken to David Russell, who led the UK effort to rescue survivors from the Russian submarine Kursk, which sank in the Barents Sea in 2000.

Listen to the podcast here.

Over the years, Stockton Rush - the pilot of the Titan submersible and founder of the company that created it - spoke of his love for the ocean.

The 61-year-old was one of five killed when the vessel imploded.

Watch Rush describe how and why he started the business in this snippet from a BBC documentary:

More from the family of Paul-Henri Nargeolet- his stepson has given a moving tribute to CBS News.

A renowned oceanographer and explorer, the 77-year-old was known as “Mr Titanic” because of his expertise on the sunken ship.

“His home away from home was the ocean, he felt so comfortable there. So much of this discussion is about risk, and I felt like he just accepted the risk”, John Paschall told CBS News.

“Being in the Titanic in that area in his final moments, while it’s so raw and fresh…I think it means a lot that he spent his final moments near a scene in the world that meant so much to him”, he added.

Mr Paschall said the relationship between Mr Nargeolet and his mother Michele Marsh - a former CBS News anchor who died in 2017 - was “truly special”.

The family of the renowned French diver says he will be remembered as "one of the greatest deep-sea explorers in modern history".

The 77-year-old was known as a world-leading Titanic expert who had completed more than 35 dives to the ocean liner wreck.

In a statement his family said: "When you think of the Titanic and all we know about the ship today, you will think of Paul-Henri Nargeolet and his legendary work.

"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."

Nargeolet served in various roles in the French navy from 1964 to 1986, including as a commander, ship captain, and deep-sea diver. He led several expeditions to the Titanic wreckage site.

Image source, Getty Images

We have just received a statement from the Dawood family, who are grieving after the loss of Shahzada Dawood, 48, and his son Suleman, 19.

Here is the full statement:

“Our thoughts are with the victims of this tragedy, one which has been followed around the world.

"As with any tragedy of this magnitude, it brings out the best and worst in people.

"Some go out of their way to contribute and support, others use these moments for personal gains. How one behaves in such circumstances reveals more about their own character than anything else.

"The family remains overwhelmed with the love and support that it has received and is grateful to the those who showcased the best in humanity.”

The aunt of Suleman Dawood, who was on the submersible with his father Shahzada, said the 19-year-old was hesitant about going on the dive to see the Titanic wreck in the days beforehand.

Speaking to NBC News, external, Azmeh Dawood, the older sister of Shahzada, said Suleman told a relative he felt "terrified" about the trip, but wanted to please his dad.

They embarked on the vessel last Sunday, which was Father's Day in North America.

"I feel disbelief," Azmeh said."It's an unreal situation."

"I feel like I've been caught in a really bad film, with a countdown, but you didn't know what you're counting down to," she said. "I personally have found it kind of difficult to breathe thinking of them."

Eloise Alanna
BBC News, St John's, Newfoundland

When we met Larry Daley early Thursday morning, he still had hope that the crew of the Titan would be found safely.

Now, he’s mourning the loss of his friend, Paul-Henry Nargeolet, who was aboard the Titan submersible.

The friends last caught up just two weeks ago.

“Obviously, you know, it's heart wrenching to hear the news. I mean, up 'til a few hours ago, I was still hopeful,” he said.

But then the fog rolled, bringing a chill in the air.

Paul-Henry “lost his life in a place he so loved — exploring the Titanic,” Daley said.

“It’s kind of symbolic in a way.”

Daley, who is also an avid Titanic explorer, said he’s still trying to process the loss of the five members onboard the submersible. And it will take time to reconcile this tragedy with his passion for exploration.

“We always have to keep exploring — that’s what human nature is.”

Joe Tidy
Cyber-security reporter

Amazon has begun moderating the reviews section of the now infamous games controller used to control the missing Titan sub.

As news of the missing sub spread earlier this week, bad taste reviews began to appear on the shopping giant’s page for the Logitech F710 controller.

Users posted about the controller "not being good at steering a submarine" and "losing signal in the ocean".

Before the fate of the crew aboard the sub became clear, the posts received hundreds of approvals from other shoppers and some were made into viral TikTok videos.

Amazon has started deleting the reviews as it’s understood they do not comply with community guidelines.

The Logitech F710 controller is a popular games console accessory which wirelessly connects to gaming consoles and PCs.

The relatively cheap £33 ($42) controller has become a focal point of the technology on the Titan since videos of the company CEO using it were posted online.

Director James Cameron, who has completed 33 dives to the Titanic, has told BBC News that he predicted this deadly outcome days earlier.

The director of the blockbuster film Titanic said he was on a ship on Sunday when the sub first went missing, and he did not hear about its disappearance until Monday.

When he learned that the sub had lost both its navigation and communication at the same time, he said he immediately suspected a disaster had taken place.

"I felt in my bones what had happened. For the sub’s electronics to fail and its communication system to fail, and its tracking transponder to fail simultaneously - sub's gone."

Cameron told BBC News the past week has "felt like a prolonged and nightmarish charade where people are running around talking about banging noises and talking about oxygen and all this other stuff".

"I knew that sub was sitting exactly underneath its last known depth and position. That's exactly where they found it," he continued.

He added that once a remotely controlled underwater vehicle was deployed on Thursday, searchers "found it within hours, probably within minutes".

Jonathan Amos
Science correspondent

It’s clear now that those “banging” noises we’ve been talking about over the past two days were spurious.

They weren’t the result of the crew of the OceanGate Titan hitting the metal parts of the sub to attract attention.

We know this because the crew would have been killed instantly in the implosion, and that implosion was loud enough that it very definitely would have been picked up on the search forces’ listening devices at the sea surface.

And they heard no such event, meaning the implosion must have happened before search forces turned up on Sunday.

We saw something similar in 2017 when the Argentinian naval submarine, the San Juan, went missing off the country’s coast.

There were reports of banging noises back then, too. But that submarine, like the Titan, also suffered an implosion.

Interestingly, the moment of the San Juan’s demise was eventually established in a trawl of acoustic data recorded by hydrophones, or underwater microphones, that had been placed on the seafloor.

Those same hydrophones, which are used to listen for illicit atomic weapons tests, may well have picked up the end of the OceanGate Titan.

They could give us an exact timing for when the tragedy occurred. The evidence of where the debris was sited indicated it was around the time on Sunday when communications between the sub and its support ship went down.

The US Navy detected “an acoustic anomaly consistent with an implosion” shortly after the Titan lost contact with the surface, an official has told CBS News, the BBC's US partner.

The information was relayed to the US Coast Guard, which used it to narrow the radius of its search, the official added.

The banging that was reported earlier is now thought to have been coming from other ships in the area, CBS reports.

Image source, Reuters

The Dawood family have also just released a statement on Twitter, saying “it is with profound grief that we announce the passing of Shahzada and Suleman Dawood”.

Here is the more of their statement:

"Our beloved sons were aboard OceanGate's Titan submersible that perished underwater.

Please continue to keep the departed souls and our family in your prayers during this difficult period of mourning.

We are truly grateful to all those involved in the rescue operations. Their untiring efforts were a source of strength for us during this time.

We are also indebted to our friends, family, colleagues, and well-wishers from all over the world who have stood by us during our hour of need. The immense love and support we receive continues to help us to endure this unimagineable loss.

We extend our heartfelt condolences to the families of the other passengers on the Titan submersible. At this time, we are unable to receive calls and request that support, condolences, and prayers be messaged instead. Details of their final rites in this world will be announced soon."

Image source, Dirty Dozen Productions

The family of British billionaire explorer Hamish Harding have paid tribute to "a dedicated father" who "lived his life for his family, his business and for the next adventure" after the news of the implosion of the missing submersible.

Here is the statement in full, which was released via Harding's company Action Aviation:

"Today we are united in grief with the other families who have also lost their loved ones.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.

He was one of a kind and we adored him. He was a passionate explorer - whatever the terrain - who lived his life for his family, his business and for the next adventure. What he achieved in his lifetime was truly remarkable and if we can take any small consolation from this tragedy, it's that we lost him doing what he loved.

He will leave a gap in our lives that can never be filled. 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."

Chelsea Bailey
BBC News, St John's

As the news of the Titan’s "catastrophic implosion" spread through St John’s, Newfoundland, fog rolled in from the sea, enveloping the town.

“The fog is very fitting, in a way - shrouded in sadness,” Kendall McPherson tells me.

For the last week, visitors and locals alike have made their way to the town’s Harbourside Park, to stare out at the Atlantic, hoping for the Titan’s return.

Just days ago, the submersible and its crew began its final voyage from the nearby harbour.

Local resident John Michael Lennon says the deaths of the five crew members aboard the Titan left him with a lot of questions, and even more sadness.

But for a native of this seaside town, he says, the shift from hope to hopelessness is nothing new.

“We see what the sea does, how hard it is on everything.”

Many people here in this fishing community have lost friends and loved ones to the sea.

Still, Lennon says, some people feel an intense “need” to explore its depths.

“Joy and sorrow were always communal rights in small maritime communities."

Pallab Ghosh
Science correspondent, BBC News

Investigators will first want to confirm what the rescue teams suspect and what the co-founder of OceanGate, Guillermo Söhnlein, told BBC News he believed happened - that there was catastrophic implosion.

They will also want to know when and, crucially, why it happened. The answers to those questions lie in the two patches of debris discovered by an ROV on Thursday lunchtime US time

The authorities will be gathering every piece of the debris they can find to build up a full picture of the sequence of events that led to the tragedy, according to Ryan Ramsey, a former submarine captain in the Royal Navy.

“This is not going to be dissimilar to an aircraft crashing, there is no black box, so you are not going to be able to track the last movements of the vessel itself," he said.

"But as many pieces of the vessel as they can do, to get those back up to the surface, and from them they should be able to analyse the break structure, any fractures that have happened and maybe piece together what actually happened in those last moments”.

Five major parts of the submersible were found on Thursday, approximately 1,600ft (480m) from the bow of the Titanic wreck.

The debris was located by a remote-controlled underwater search vehicle (ROV).

Separate pieces were discovered that allowed authorities to confirm they came from the Titan, including a tail cone.

It is unclear when the implosion occurred or what may have caused it.

The president of the Explorers Club has paid tribute to the Titan passengers, saying: "Our hearts are broken."

In a statement shared on Twitter, external, Richard Garriott de Cayeux, the club's president, paid tribute to each of the five people on board the sub.

He called Hamish Harding his "dear Friend" who continued to "push dragons off maps both in person and through supporting expeditions and worthy causes."

He said Paul-Henry Nargeolet was "one of the foremost experts on submersible expeditions to the Titanic."

He said of the pair: "They pushed themselves in their entrepreneurial pursuits as they did in exploration."

Garriott de Cayeux also paid tribute to "friend" Stockton Rush, Shahzada Dawood and son Suleman, who he said would have been "welcomed" to the club at some point in their futures.

Pallab Ghosh
Science correspondent, BBC News

Key to the investigation will be bits of the carbon fibre that part of the vessel was made from.

The big question is did it undergo a structural failure that led to a rupture in the hull, perhaps because of a lack of proper testing?

Detailed analysis of the material may reveal whether there were any flaws in the material.

Professor Blair Thornton from the University of Southampton told BBC News what might have happened.

“In the case that this is a catastrophic failure of the main housing, the submersible would have been subjected to incredibly high pressures, equivalent to the weight of the Eiffel Tower, tens of thousands of tonnes, compressing the vessel," he said.

"We're talking about a very powerful implosion of the main housing.”

You can read more analysis here.