The submersible went missing on Sunday in the Atlantic, some 435 miles south of Newfoundland, Canada.
The Titan was launched as part of an expedition involving The Polar Prince, an icebreaker that was hired by OceanGate and formerly operated by the Canadian Coast Guard.
The ship ferried dozens of people and the submersible craft to the North Atlantic wreck site, where the Titan was scheduled to make multiple dives.
It is understood from OceanGate that Titan has a 96-hour oxygen supply in case of emergencies meaning only around two days of “life support” remain.
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Timelapse shows marine traffic after submersible goes missing.
What is the Titan?
The Titan is a small submersible operated by OceanGate – a US-based company which offers crewed submersibles for industry, research and exploration.
Tickets cost $250,000 (£195,000) for an eight-day trip including dives to the wreck.
According to the company, the Titan is capable of diving 13,120ft “with a comfortable safety margin”.
It takes the craft around two hours to descend approximately 12,500ft – where the Titanic wreck lies in a trench in the Atlantic.
The vessel, which weighs around 23,000lbs (10,432kg), operates by pinging back a message every 15 minutes to signal to those ashore that it is safe.
However, Sky News understands that those pings have stopped.
In a May 2021 court filing, OceanGate said the Titan had an “unparalleled safety feature” that assesses the integrity of the hull throughout every dive.
At the time of the filing, Titan had undergone more than 50 test dives, including to the equivalent depth of the Titanic, the company said.
During its 2022 expedition, OceanGate reported that the submersible had a battery issue on its first dive and had to be manually attached to its lifting platform, according to a November court filing.
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‘Challenging’ hunt for sub
What about the rescue effort?
US and Canadian ships and planes have been involved in the rescue efforts, but the remote location and depth make the operation particularly challenging.
Also, it is unclear whether the Titan is still underwater or had surfaced and was unable to communicate.
US Coast Guard Rear Admiral John Mauger said: “It is a remote area and it is a challenge to conduct a search in that remote area.
“We are deploying all available assets to make sure that we can locate the craft and rescue the people on board.”
The Polar Prince is being used to search the surface where the submersible was launched. Canadian Boeing P-8 Poseidon reconnaissance aircraft and two Lockheed C-130 Hercules aircraft also conducted overflights.
OceanGate Expeditions said it was “mobilising all options” to rescue those on board.
What do we know about the people on board?
• Hamish Harding
British billionaire Hamish Harding, 58, was confirmed as one of the passengers by his stepson Brian Szasz, who said on Facebook that his stepfather was in his “thoughts and prayers”.
Mr Harding is the current chairman of Action Aviation – a sales and operations company that offers a range of services in the business aviation industry.
Posting on social media before the trip, Mr Harding said he was joining OceanGate Expeditions – the company that supplied the vessel – as a mission specialist.
He wrote that due to bad weather in Newfoundland, Canada, the expedition was likely to be the first and only manned mission to the Titanic in 2023.
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Based in the United Arab Emirates – where Action Aviation headquarters is based – Mr Harding described himself on social media as a world explorer.
He holds the Guinness world record for the fastest circumnavigation of the Earth via the North and South Poles by an aircraft – 46 hours, 40 minutes and 22 seconds.
In 2016, Harding accompanied former astronaut Buzz Aldrin to the South Pole, when Aldrin became the oldest person ever to reach the Antarctic region, at 86.
Last year, he also took part in the fifth human space flight by Blue Origin – an American aerospace company founded by Jeff Bezos.
Jannicke Mikkelsen, an explorer and friend of Hamish Harding, told Sky News she believed Mr Harding would be an “important asset” to the others in the submersible.
Image: Jannicke Mikkelsen, an explorer and friend of Hamish Harding, said she believed he would be an “important asset” to the others in the submersible
“He will go through the emergency checklists and procedures together with the captain of the submersible,” she said.
“He will also be a good inspiration to the rest of the team to keep calm. I really believe Hamish is the one that can help lead this team – because he has been in tricky situations in the past on expeditions.
She added: “I’m terrified if they are stuck at the bottom of the ocean with 96 hours of air and not able to get back to the surface – this is what I fear the most.”
• Stockton Rush
Stockton Rush is chief executive and founder of OceanGate Inc – a company that provides crewed submersible services to enable researchers and explorers to access the oceans’ vast resources.
Having trained as a pilot, he became the youngest jet transport rated pilot in the world at the age of 19.
He is also a founder and member of the board of trustees of non-profit organisation OceanGate Foundation, which aims to catalyse emerging marine technology to further discoveries in marine science, history, and archaeology.
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OceanGate CEO speaks to Sky News
In an interview with Sky News back in February, Mr Rush spoke about visiting the Titanic wreck.
“What really strikes you is how beautiful it is,” he said. “You don’t normally see that on a shipwreck.
“It is an amazingly beautiful wreck.”
When asked if they can go inside the wreckage, Mr Rush said: “You can see inside, we dipped down and saw the grand staircase and saw some of the chandeliers still hanging.
“Next year we are hoping to send a small robot inside but for now we stay on the outside.”
• Paul-Henri Nargeolet
Paul-Henri Nargeolet is a former commander who served in the French Navy for 25 years.
During his service, he became the captain of the deep submergence group of the navy.
After leaving the navy he joined the French Institute for Research and Exploitation of the Sea, according to The Five Deeps Expedition – a company that assembles scientists, engineers and submersible operators for missions.
Mr Nargeolet has already led several expeditions to the Titanic site and has been involved in numerous scientific and technical expeditions around the world.
• Shahzada Dawood and his son Suleman
Pakistani businessman Shahzada Dawood and his son, Suleman, are also on board, their family said in a statement.
“We are very grateful for the concern being shown by our colleagues and friends and would like to request everyone to pray for their safety,” they added.
The Dawoods belong to one of Pakistan’s most prominent families, whose eponymous firm invests across the country in agriculture, industries and the health sector.
Mr Dawood, 48, also currently serves as the vice chairman of the board of Engro Corporation – a Pakistan-based conglomerate operating across a number of sectors including fertiliser and chemical production.
The UK-based businessman is also a trustee at the SETI Institute – a Silicon Valley not-for-profit working in space exploration.
Israel has shown little respect for international borders since becoming the unrivalled military hegemon of the Middle East. Today that meant an Israeli airstrike on a government building in Damascus.
Israel has moved into parts of the south of the country, built military bases and declared a line of control.
Image: Smoke rises from an Israeli airstrike that hit the Syrian Defence Ministry in Damascus. Pic: AP
On Monday, Syrian tanks heading south to try and restore order following an outbreak of factional fighting were attacked by Israeli warplanes.
“The presence of such vehicles in southern Syria could pose a threat to Israel,” stated the Israel Defence Forces.
In reality, Syria’s ageing tanks pose minimal threat to Israel’s state-of-the art military.
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Syrian presenter interrupted by Israeli airstrike
The Syrian armour was attacked as it entered the area around Sweida in the Druze heartland of southern Syria following factional fighting there.
More on Israel
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The flare-up reportedly began with clashes between Bedouin and Druze groups that ended in scores killed.
The background to the escalation is complicated.
At least three Druze militia groups are divided in their loyalties to different religious leaders and differ over how they should respond to calls to assimilate into the new post-revolutionary Syria.
Image: Druze from Syria and Israel protest on the Israeli-Syrian border.
Pic: AP
Israel is becoming more and more involved in Syria’s internecine war and says it will remain there indefinitely “to protect our communities and thwart any threat”.
Its critics say Israel is operating a policy of divide and rule in Syria, weakening the fledgling government and creating a buffer zone to protect the border with the Golan Heights – originally Syrian territory that it has occupied and annexed for almost half a century.
Since the fall of the Assad regime, Israel has used airstrikes to destroy of much of Syria’s military capability weakening its ability to impose control on outlying regions. This makes it more not less likely Israel will have a volatile unstable state on its northern border.
Image: Syrian security forces walk along a street in the southern Druze city of Sweida. Pic: Reuters
America and European powers have chosen to normalise relations with the new government in Damascus and lift sanctions.
In contrast Israel has occupied its territory, bombed its military and today hit one of its government buildings in the capital with an airstrike.
Since its crushing military campaigns against Hamas, Hezbollah and Iran, Israel has emerged as the unchallenged military power of the region.
There is however a limit to what blunt force can achieve alone. It requires diplomacy to achieve lasting gains and Israel’s repeated assaults on multiple neighbours combined with its relentless campaign in Gaza are winning it few friends in the region.
Israeli airstrikes have targeted the Syrian military headquarters in Damascus amid renewed clashes in the country.
The gate of the Ministry of Defence in the Syrian capital was targeted by two warning missiles from an Israeli reconnaissance aircraft.
State-owned Elekhbariya TV said the Israeli strike had wounded two civilians, the Reuters news agency reported.
Image: Smoke rises from Syria’s defence ministry building in Damascus. Pic: Reuters
It came as Israeli airstrikes targeted security and army vehicles in the southern city of Sweida, where the Druze faith is one of the major religious groups – marking the third consecutive day Israel has struck Syrian forces.
The Israeli military confirmed it had “struck the entrance gate” in Damascus – and that it would be monitoring “actions being taken against Druze civilians in southern Syria”.
Image: The Israeli airstrike targeted Syria’s military headquarters. Pic: AP
Why Israel is getting involved in Syria’s internal fighting
Israel has shown little respect for international borders since becoming the unrivalled military hegemon of the Middle East. Today that meant an Israeli airstrike on a government building in Damascus.
Israel says its attack on a Syrian defence ministry facility was intended as a warning to the new government: stay out of the part of southern Syria we have occupied or else.
Israel has moved into parts of the south of the country, built military bases and declared a line of control.
On Monday, Syrian tanks heading south to try and restore order following an outbreak of factional fighting were attacked by Israeli warplanes.
“The presence of such vehicles in southern Syria could pose a threat to Israel,” stated the Israel Defence Forces.
In reality, Syria’s ageing tanks pose minimal threat to Israel’s state-of-the art military.
Local media said Sweida and nearby villages were coming under heavy artillery and mortar fire on Wednesday, according to Reuters.
The clashes marked the collapse of a ceasefire between Syrian government forces and Druze armed groups, with Israel also warning it would increase its involvement.
Image: Syria said its forces had responded to being fired upon. Pic: Reuters
Israel said it was acting to protect the Druze groups through its attacks on convoys of Syrian forces.
Syria blamed militias in Sweida for violating a ceasefire agreement which had only been reached on Tuesday.
A statement from its defence ministry said: “Military forces continue to respond to the source of fire inside the city of Sweida, while adhering to rules of engagement to protect residents, prevent harm, and ensure the safe return of those who left the city back to their homes.”
Israel’s defence minister Israel Katz said the military will continue to strike Syrian forces until they withdraw and should “leave Druze alone”, according to local reports.
At least 20 people have been killed in an incident in Khan Younis, according to the Gaza Humanitarian Foundation (GHF), an Israel and US-backed organisation.
In a statement, it said 19 people were trampled and one was stabbed in a surge “driven by agitators in the crowd”.
“We have credible reason to believe that elements within the crowd – armed and affiliated with Hamas – deliberately fomented the unrest,” it said.
“For the first time since operations began, GHF personnel identified multiple firearms in the crowd, one of which was confiscated. An American worker was also threatened with a firearm by a member of the crowd during the incident.”
It provided no evidence to support the claim.
The Hamas-run Gaza health ministry claimed 21 Palestinians were killed, “including 15 who died of suffocation as a result of tear gas fired at the starving people and the subsequent stampede” at the GHF site.
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2:54
Gaza deaths increase when aid sites open
The statement is unusual for the GHF, as the controversial group, which has been rejected by the United Nations and other aid groups, rarely acknowledges trouble at its distribution sites.
The GHF began distributing food packages in Gaza at the end of May, after Israel eased its 11-week blockade of aid into the territory.
It has four distribution centres, three of which are in the southern Gaza Strip. The sites, kept off-limits to independent media, are guarded by private security contractors and located in zones where the Israeli military operates.
Analysis: Gazans face unbearable choice of risking their lives for supplies or going hungry
by Lisa Holland, Sky News correspondent in Jerusalem
The United Nations has already condemned the aid centres run by the Gaza Humanitarian Foundation as “death traps” – and that was before the latest loss of life, seemingly mostly from suffocation.
It’s the first and only time we know of people dying in this way, waiting to get food. Although the Gaza health ministry and the GHF dispute exactly what happened.
But how much longer can this Israeli and American-backed way to supply aid continue when people are dying on a near-daily basis?
However it happened, Gaza’s overcrowded hospitals are once again overwhelmed.
And there are serious questions to answer about the organisation of a system which is supposed to be providing humanitarian aid to desperately hungry people, but instead is a place where there is so much loss of life.
It leaves people with an unbearable choice between risking their lives to get supplies or going hungry.
Palestinian witnesses say Israeli forces have repeatedly opened fire towards crowds of people going to receive aid.
The Israeli military says it has fired warning shots at people who have behaved in what it says is a suspicious manner. It says its forces operate near the aid sites to stop supplies from falling into the hands of militants.
After the deaths of hundreds of Palestinians trying to reach the aid hubs, the UN has called the GHF’s aid model “inherently unsafe” and a violation of humanitarian impartiality standards.
In response, a GHF spokesperson said: “The fact is the most deadly attacks on aid sites have been linked to UN convoys.”
Image: People carry distributed aid supplies in Khan Yunis, southern Gaza. File pic: AP
The GHF says it has delivered more than 70 million meals to Gazans in five weeks and claims other humanitarian groups – which refuse to work with the GHF – had “nearly all of their aid looted” by Hamas or criminal gangs.
Since the GHF sites began operating, more than 875 people have been killed while receiving aid, both at GHF distribution points or elsewhere, according to the UN human rights office and the Hamas-run Gaza health ministry.
At least 674 of those have been killed in the vicinity of aid distribution sites run by the GHF.