Speaking on Air Force One on Saturday, President Donald Trump denied American responsibility for the attack. "From what I've seen, that was done by Iran," he told reporters.
However, newly released video suggests that it was a US Tomahawk missile that hit the school, in an attack on a next door naval base.
The video below, shared by Mehr News Agency and geolocated by Sky News' Data and Forensics team, shows the moment a missile hit the Islamic Revolutionary Guard Corps naval base in Minab, a stone's throw away from Shajareh Tayyebeh School.
In the video, thick smoke can already be seen billowing from the direction of the school, indicating it had recently been struck.
Analysis of the video by munitions expert N.R. Jenzen-Jones, director of Armament Research Services (ARES), confirms the munition used as a Tomahawk missile, identifiable by the unique wings protruding from either side of the body. If he is correct it suggests the school was hit by US forces.
"The video shows a Tomahawk missile striking a target," Mr Jenzen-Jones said. "Given the belligerents, that indicates it is a US strike, as Israel is not known to possess Tomahawk missiles.
"Despite various claims circulating online, the munition in question is clearly not an Iranian Soumar missile."
Tomahawk missile wings are folded away during launch and unfold when the missile is airborne.
Video from US Central Command, filmed on the same day the school was struck, shows Tomahawk missiles being launched from a US warship as part of its operations in Iran.
It does not amount to evidence that any of those specific guided missiles hit the school, but it shows they were being used.
Secretary of War Pete Hegseth has said that the school strike remains under investigation, while saying that "the only side that targets civilians is Iran".
Precision strikes
Satellite imagery of the school building and naval base show extensive damage to numerous buildings following the strikes.
Circular holes can be seen in the centre of three of the buildings on the naval base that were targeted in the US strikes, including a building listed as a clinic and pharmacy.
A similar hole can be seen in the section of the school building still standing.
The shape and placement of the holes are revealing.
"The satellite imagery taken together with known US operational practice makes it almost certain that these strikes were conducted with precision guided munitions," Mr Jenzen-Jones, told Sky News.
Change on satellite imagery
Imagery from 2013 shows the school building situated within the IRGC compound. However, a wall appears to have been built between 2013 and 2016, separating the school building and its grounds from the naval base.
Later satellite imagery from 2018 shows the newly built walls painted in bright colours. The ground surrounding the school appears to have been decorated with chalk markings - a hand-drawn sports court and decorative patterns can be seen.
The information revealed in the newly released video from Minab, calls into question Mr Trump's claim.
UN experts strongly condemned the strike on the school last week, calling it "a grave assault on children, on education, and on the future of an entire community".
They highlighted the fact that schools are civilian buildings and that children are expressly protected under international humanitarian law.
Aftermath
Videos of the aftermath of the strike show workers digging through the rubble of the school building. A backpack can be seen covered in dust amid the debris.
On 3 March, Mehr News Agency released photographs of rows of graves being dug at the Minab Cemetery. The picture shows 77 dug graves, with at least 23 more in the process.
Additional production from Michelle Inez Simon.
The Data x Forensics team is a multi-skilled unit dedicated to providing transparent journalism from Sky News. We gather, analyse and visualise data to tell data-driven stories. We combine traditional reporting skills with advanced analysis of satellite images, social media and other open source information. Through multimedia storytelling we aim to better explain the world while also showing how our journalism is done.
John Healey has been updating MPs with new details on UK operations in the Middle East, including deployments to the region and evacuations of British nationals.
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He said on Monday: "The UK is now conducting defensive air sorties in support of the UAE. Typhoons successfully took out two drones, one over Jordan, the second heading to Bahrain.
"The third Wildcat [helicopter] has now arrived in Cyprus, and we've now deployed additional RAF operations experts in more than five countries in the region, helping coordinate regional military and civilian airspace."
He added that the destroyer HMS Dragon would set sail for the eastern Mediterranean "in the next couple of days", where it will join US air defence vessels.
The Ministry of Defence (MoD) has posted a short video on X showing a drone being blown up by RAF jets.
The defence secretary also confirmed that 37,000 British nationals have been evacuated since the start of the war in Iran and three chartered flights to the UK have now taken off from Oman's capital, Muscat, "with more to come this week".
Mr Healey said "fragments" of the Iranian drone that hit RAF Akrotiri in Cyprus last week "are being analysed for foreign military hardware by our experts at DSTL [Defence Science and Technology Laboratory]".
The cabinet minister also said that after the UK gave the US permission to use British bases for defensive operations, the first US bomber aircraft landed at RAF Fairford, Gloucestershire, on Friday.
Earlier in the Commons, the chancellor admitted the conflict in the Middle East is likely to put "upward pressure on inflation", although the UK is ready to support the release of oil reserves as supply issues continue.
Rachel Reeves said additional funding had been approved for the MoD to deploy "additional capabilities" in the region.
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Meanwhile, Downing Street has steered away from suggestions that the British aircraft carrier HMS Prince of Wales is preparing to deploy to the Mediterranean.
No decision about deployments had been made, and the Prince of Wales has always been at a high level of readiness, Number 10 said today.
The shadow defence secretary responded to Mr Healey's statement in the Commons by criticising the government for the delay in sending HMS Dragon to the Mediterranean.
James Cartlidge said it had "completely undermined Britain's international standing" while Mr Healey defended the government's response and called Mr Cartlidge an "armchair general".
They were in Australia for the Asian Cup when the Iran war began just over a week ago.
Prime Minister Anthony Albanese said officials had been preparing "for some time" and the home affairs minister travelled to Queensland to arrange the move.
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"Australians have been moved by the plight of these brave women. They are safe here and they should feel at home here," he said.
"Once it was made clear these women wanted assistance, the Australian federal police moved them to a safe location where they remain," Mr Albanese added.
President Trump said he had spoken to Mr Albanese and that five of the team had "been taken care of" - but indicated the others were returning home.
The Australian government had been under pressure to protect the women after they were knocked out the tournament.
The players were reportedly criticised on Iranian TV, with a commentator saying they had committed the "pinnacle of dishonour" for staying silent during the anthem before their match on 2 March - two days after the US and Israel began attacking Iran.
"Traitors during wartime must be dealt with more severely," presenter Mohammad Reza Shahbazi said, according to Reuters news agency.
Some believed the team's silence was an act of resistance, while others saw it as a show of mourning following the initial US-Israel attacks on their country.
The team has not made any specific comment on their stance.
They sang and saluted ahead of defeats to Australia on Thursday and the Philippines on Sunday, but there were concerns they had been ordered to do so.
The team failed to get past the group stage and players' union FIFPRO said it was "really concerned" about their welfare and had been unable to contact them.
Dozens of people chanted "let them go" and "save our girls" as the team's bus left the stadium on the Gold Coast after Sunday's match.
Supporters said they could see at least three players making the international hand signal for help, according to CNN.
Mr Trump said on Monday he had spoken to Prime Minister Albanese about the matter.
"He's on it!" Mr Trump posted on Truth Social.
"Five have already been taken care of, and the rest are on their way.
"Some, however, feel they must go back because they are worried about the safety of their families, including threats to those family members if they don't return."
'Ongoing threat'
Exiled crown prince Reza Pahlavi, who lives in the US, said he had been told that Fatemeh Pasandideh, Zahra Ghanbari, Zahra Sarbali, Atefeh Ramazanzadeh and Mona Hamoudi were now in a "safe location".
He earlier said the team faced an "ongoing threat" after their "brave act" not to sing the anthem.
"As a result of their brave act of civil disobedience in refusing to sing the current regime's national anthem, they face dire consequences should they return to Iran," he posted on social media.
The Australian Iranian Council had also urged the government to protect the players.
It launched an online petition asking authorities to "ensure that no member of Iran's women's national football team is to depart Australia while credible fears for their safety remain".
The first time we've seen the King and Queen, alongside the Prince and Princess of Wales and other members of the family, since Andrew Mountbatten-Windsor was arrested.
You wonder whether they could hear the protesters over the noise of the steel drum band outside Westminster Abbey.
But even if they couldn't they would have seen from their cars the yellow banners from anti-monarchy group Republic.
Their protest appeared no larger in size than last year, but their enormous yellow banner with the words "What did you know?" was designed to get maximum attention.
It was also a day when more low-resolution photos were uncovered in the Epstein files of a man who appears to bear a resemblance to Andrew.
Appearing in any photos in the files does not indicate any wrongdoing and Andrew has always denied any claims against him.
As representatives from across the Commonwealth gathered, it was a reminder the Andrew issue has a wider global impact, mainly around his place in the line of succession.
However, it's unlikely to have been a topic of public discussion between the royals and delegations from the other 14 realms where King Charles is also monarch.
All those realms must agree to support Andrew's removal as eighth in line to the throne through legislation before it can happen.
Australia, New Zealand and Canada have so far backed any move in that direction.
But this was a day where the King's priority was on promoting a positive image - of the Commonwealth as a force for good, and emphasising his commitment to this body of nations as its formal head.
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As he said in his statement when his brother was arrested, the wider family will just keep on with their public duties.
We again saw that in full focus, albeit with all of them mindful that the world continues to watch the latest developments from the Epstein scandal, over which the Royal Family has no control.
The 52-year-old double murderer died in hospital on Saturday after allegedly being attacked by an unknown inmate at HMP Frankland.
Huntley, who killed 10-year-olds Holly Wells and Jessica Chapman in Soham, Cambridgeshire, in 2002, had been in a critical condition in hospital after being hit with a metal bar on 26 February.
The former school caretaker was allegedly attacked in a workshop at the high-security jail in Durham. Police said earlier that their investigation into the circumstances of the incident is ongoing.
It is a longstanding policy for the prison service to contribute up to £3,000 towards basic funeral expenses for any death in custody.
The money is only permitted to be paid directly to a funeral director, and must be used to cover "reasonable costs" which include a "simple" coffin, a hearse, and cremation or burial fees.
It cannot be used for a headstone, flowers or order of service sheets, or other expenses considered "non-reasonable", such as hospitality related to any funeral or transportation for mourners.
Previous prisoners whose funeral costs have been covered include the Yorkshire Ripper, Peter Sutcliffe, in 2020, and Raymond Morris in 2014.
If Huntley's next of kin or family members have alternative arrangements, such as a pre-paid funeral plan, money from the state would not be used.
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Huntley's daughter told The Sun on Sunday newspaper that she does not believe he deserves a funeral.
A Ministry of Justice spokesperson said: "The murders of Holly Wells and Jessica Chapman remains one of the most shocking and devastating cases in our nation's history, and our thoughts are with their families."