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Audio analysis of footage of an Israeli attack on an aid worker convoy last month suggests that some of the shots were fired from as little as 12 metres away.

The Israel Defence Forces (IDF) has admitted killing the unarmed medics, saying that the convoy was acting “suspiciously”.

A spokesman told journalists in a 5 April briefing that an initial investigation had found there was “no firing from close distance” during the incident on 23 March.

Sky News has spoken to two independent audio forensic experts who analysed a 19-minute video of the attack filmed by Rifaat Radwan, one of the medics who was killed.

The expert analysis shared with Sky News suggests that the first gunshots heard in the video are likely 40-50 metres away from the phone recording the footage, but gunshots heard later are closer in distance – around 12-18 metres away.

audio from prcs video gaza aid worker attack D&F
Image:
Audio from the first three seconds of the attack captures multiple gunshots being fired.

In response to our findings, the IDF said a preliminary inquiry indicated that troops “opened fire due to a perceived threat following an encounter in the area”.

The shooting continues for six and a half minutes

The 19-minute video shows a convoy of marked ambulances and a fire engine travelling south along a road east of Rafah city.

A spokesman for the Israeli military initially claimed the emergency vehicles were travelling without any headlights or emergency signals, but the IDF later backtracked after the video disproved this claim. All vehicles visible in the convoy have their emergency lights on.

The video below shows the first gunshots fired during the attack.

After analysing the video, two audio forensic analysts told Sky News that “multiple shooters” were likely involved in the incident and “over 100 gunshots” were fired.

Audible gunshots are first heard 13 minutes and 35 seconds into the video, shortly after the convoy arrives at the scene of an earlier attack. The shooting continues for six and a half minutes.

Professor Rob Maher from Montana State University, an audio forensics expert working as an independent consultant, said: “The first few audible gunshots are likely 40-50 metres away from the (phone) microphone, based upon the crack-pop acoustic sequence and an assumption about the bullet speed.

“With so many audible gunshots, it seems likely that there were many firearms involved, and that those shooters were at different locations at different times during the many minutes of shooting.”

Most bullets travel faster than the speed of sound, this is called ‘supersonic’.

When a supersonic bullet is fired, the first sound you hear is the sharp ‘crack’ made by the bullet’s shockwave. After that, you hear the ‘bang’ from the gun firing, or muzzle blast. This second sound travels more slowly – at the speed of sound.

D&F graphic

The time between the ‘crack’ and the ‘bang’ tells you how far away the gun is from the microphone. If the gun is far away, there’s a bigger gap between the two sounds. If it’s close, the gap is much shorter.

Another expert, Steven Beck of Beck Audio Forensics, estimated the distance of the first few gunshots to “around 40 metres”.

He added that the first audible shots are “most likely military rifles or carbines firing supersonic bullets that pass close to the recorder – meaning they are being fired at”.

Cred: Rob Maher
Image:
Analysis suggests a reduction in the crack-pop timing from 72 to 20 ms. This indicates that the second shot is fired from a closer range. Picture – Robert Mayer

Both forensic audio experts told us that as the video continues, the gunshots appear much closer – at a distance ranging between 12 and 18 metres. They explain that the “crack-bang” timing reduces in comparison to the start of the gunfire – indicating that the distance shortens.

Mr Beck said at the end of the video “there are more shockwaves followed by muzzle blasts. The shooter(s) at these times is much closer, with distances of 12m – 18m”.

Due to the overlapping gunshots heard in the video, from the audio it is not currently possible to rule out whether gunshots were fired back.

Prior to the attack, the ambulance from which the video is filmed had been searching for a group of paramedics who reported that they had been attacked by Israeli troops.

The ambulance travelled from southern Rafah up to the coast, before performing a U-turn and joining a convoy of other emergency vehicles.

The shooting began as the convoy arrived at the scene of the first attack.

In a statement to Sky News, the IDF said it is “conducting an inquiry into the incident, which took place in a combat zone, to uncover the truth.

“All the claims raised regarding the incident will be examined and presented in a detailed and thorough manner for a decision on how to handle the event.”

The IDF also says that six of the individuals killed were later identified as “Hamas terrorists”, though no evidence has been provided to support this claim.


The Data and 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.

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Israel attacks Houthi targets at three ports and power plant in Yemen

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Israel attacks Houthi targets at three ports and power plant in Yemen

Israel says its military has attacked Houthi targets at three ports and a power plant in Yemen.

Defence minister Israel Katz confirmed the strikes, saying they were carried out due to repeated attacks by the Iranian-backed rebel group on Israel.

Mr Katz said the Israeli military attacked the Galaxy Leader ship which he claimed was hijacked by the Houthis and was being used for “terrorist activities in the Red Sea”.

A bridge crane damaged by Israeli airstrikes is pictured in the Yemeni port of Hodeidah on 31 July 2024. Pic: Reuters
Image:
A bridge crane damaged by Israeli airstrikes last year in the Yemeni port of Hodeidah. Pic: Reuters

It came after the Israel Defense Forces (IDF) issued an evacuation warning for people at Hodeidah, Ras Issa, and Salif ports – as well as the Ras al Khatib power station, which it said is controlled by Houthi rebels.

The IDF said it would carry out airstrikes on those areas due to “military activities being carried out there”.

Afterwards, Mr Katz confirmed the strikes at the ports and power plant.

Earlier in the day, a ship was reportedly set on fire after being attacked in the Red Sea.

A private security company said the assault, off the southwest coast of Yemen, resembled that of the Houthi militant group.

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From May: Israel strikes Yemen’s main airport

It was the first such incident reported in the vital shipping corridor since mid-April.

The vessel, identified as the Liberian-flagged, Greek-owned bulk carrier Magic Seas, had taken on water after being hit by sea drones, maritime security sources said. The crew later abandoned the ship.

The Houthi rebels have been launching missile and drone attacks against commercial and military ships in the region in what the group’s leadership called an effort to end Israel’s offensive against Hamas in Gaza.

Between November 2023 and January 2025, the Houthis targeted more than 100 merchant vessels with missiles and drones, sinking two of them and killing four sailors.

The Houthis paused attacks in a self-imposed ceasefire until the US launched an assault against the rebels in mid-March.

That ended weeks later and the Houthis have not attacked a vessel, though they have continued occasional missile attacks targeting Israel.

Read more:
What is the possible Gaza hostage and ceasefire deal?
‘We’ll never yield’: Millions of Iranians unite in mourning

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A renewed Houthi campaign against shipping could again draw in US and Western forces to the area.

The ship attack comes at a sensitive moment in the Middle East.

A possible ceasefire in the Israel-Hamas war hangs in the balance and Iran is weighing up whether to restart negotiations over its nuclear programme.

It follows American airstrikes last month, which targeted its most-sensitive atomic sites amid an Israeli war against the Islamic Republic that ended after 12 days.

How did the Houthis come to control much of Yemen?

A civil war erupted in Yemen in late 2014 when the Houthis seized Sanaa.

Worried by the growing influence of Shia Iran along its border, Saudi Arabia led a Western-backed coalition in March 2015, which intervened in support of the Saudi-backed government.

The Houthis established control over much of the north and other large population centres, while the internationally recognised government based itself in the port city of Aden.

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‘We’ll never yield’: Millions of Iranians unite in mourning

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'We'll never yield': Millions of Iranians unite in mourning

Under the red flag of martyrdom, they beat their chests in memory of a fallen religious leader as the cleric recounts his fate outside one of Tehran’s oldest mosques.

Imam Hussein was tricked and martyred by his enemies in the seventh-century battle of Karbala. The crowd of grown men and women wept with grief as Hussein’s story was retold on Sunday.

Ashura is always deeply moving for the Shia faithful but this year even more so. It comes after the trauma of Israel’s surprise attacks on Iran.

Ashura
Image:
Ashura is always deeply moving for the Shia faithful

Ashura

There was a sense of emotional release and a chance for Iranians to come together in solidarity.

Ashura is also a reminder that Iran’s revolutionary leaders draw much of their power from the strength of religion in this country after a conflict its enemies hoped would see those same leaders toppled.

The festival has come at just the right time for its embattled government.

Iran’s supreme leader has appeared in public for the first time since Israel attacked his country. Ayatollah Ali Khamenei was greeted with ecstatic cheers by his followers at Ashura prayers.

His supporters told us they welcomed his return. “I was so happy that I didn’t know what to do,” said one woman. “This caused our big enemies the United States and Israel to receive a great slap in the mouth.”

“His appearance on TV for Ashura,” a young man told us, “showed that all the talk about him hiding and taking the path of peace with the United States is not true and it shows that he is holding his position strongly and steadfastly”.

Iran's supreme leader Ayatollah Ali Khamenei attends a ceremony to mark Ashura. Pic: AP
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Iran’s Supreme Leader Ayatollah Ali Khamenei attends a ceremony to mark Ashura. Pic: AP

Read more:
Defiance in Tehran as Khamenei makes appearance

We had been given rare access to Iran among a handful of journalists who were let in after the 12-day war.

Its scars aren’t hard to find – buildings left with gaping holes where Israeli airstrikes took out members of Iran’s elite, one after another.

Ashura
Image:
Ashura was a chance for Iranians to come together in solidarity

Damage to buildings
Image:
Damage to buildings from Israeli airstrikes

And Abbas Aslani, an analyst with close ties to the government, says there is a fear it may not be over.

“The Iranian government and the army are prepared for a new round of conflict, because they think that the other party, specifically Israel, is not to be trusted in terms of any ceasefire,” he said.

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At the Ashura ceremony, the crowd chants, “we’ll never yield to humiliation” – an age-old message for Iran’s enemies today as they brace for the possibility of more conflict.

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What is the possible Gaza hostage and ceasefire deal – and what challenges could lie ahead?

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What is the possible Gaza hostage and ceasefire deal - and what challenges could lie ahead?

An Israeli delegation is heading to Qatar for indirect talks with Hamas on a possible hostage and ceasefire deal in Gaza.

The development comes ahead of a meeting between Israeli Prime Minister Benjamin Netanyahu and US President Donald Trump in Washington DC on Monday aimed at pushing forward peace efforts.

The US leader has been increasing pressure on the Israeli government and Hamas to secure a permanent ceasefire and an end to the 21-month-long war in Gaza.

Smoke rises in Gaza following an explosion. Pic: Reuters
Image:
Smoke rises in Gaza following an explosion. Pic: Reuters

Mr Trump said on Tuesday on social media that Israel had agreed “to the necessary conditions to finalise” a deal on a truce.

And Hamas, which runs the coastal Palestinian territory, said on Friday it has responded to the US-backed proposal in a “positive spirit”.

More on Gaza

So what is in the plan?

The plan is for an initial 60-day ceasefire that would include a partial release of hostages held by the militant group in exchange for more humanitarian supplies being allowed into Gaza.

The proposed truce calls for talks on ending the war altogether.

The war in Gaza began after Hamas attacked Israel on 7 October 2023, killing 1,200 people and taking 250 others hostage. Dozens of hostages have since been released or rescued by Israeli forces, while 50 remain in captivity, including about 30 who Israel believes are dead.

The proposal would reportedly see about half of the living hostages and about half of the dead hostages returned to Israel over 60 days, in five separate releases.

Eight living hostages would be freed on the first day and two released on the 50th day, according to an Arab diplomat from one of the mediating countries, it is reported.

Five dead hostages would be returned on the seventh day, five more on the 30th day and eight more on the 60th day.

That would leave 22 hostages still held in Gaza, 10 of them believed to be alive. It is not clear whether Israel or Hamas would determine who is to be released.

Hamas has sought guarantees that the initial truce would lead to a total end to the war and the withdrawal of Israeli troops from Gaza.

A Hamas official has said Mr Trump has guaranteed that the ceasefire will extend beyond 60 days if necessary to reach a peace deal, but there is no confirmation from the US of such a guarantee.

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Contractors allege colleagues ‘fired on Palestinians’

Possible challenges ahead

And in a sign of the potential challenges still facing the two sides, a Palestinian official from a militant group allied with Hamas said concerns remained.

The concerns were over humanitarian aid, passage through the Rafah crossing in southern Israel to Egypt and clarity over a timetable for Israeli troop withdrawals.

Hamas’s “positive” response to the proposal had slightly different wording on three issues around humanitarian aid, the status of the Israeli Defense Forces (IDF) inside Gaza and the language around guarantees beyond the 60-day ceasefire, a source with knowledge of the negotiations revealed.

But the source told Sky News: “Things are looking good.”

The Times of Israel reported Hamas has proposed three amendments to the proposed framework.

According to a source, Hamas wants the agreement to say that talks on a permanent ceasefire will continue until an agreement is reached; that aid will fully resume through mechanisms backed by the United Nations and other international aid organisations; and that the IDF withdraws to positions it maintained before the collapse of the previous ceasefire in March.

Mr Netanyahu’s office said in a statement that changes sought by Hamas to the ceasefire proposal were “not acceptable to Israel”.

However, his office said the delegation would still fly to Qatar to “continue efforts to secure the return of our hostages based on the Qatari proposal that Israel agreed to”.

Read more:
‘Two security workers injured after grenades thrown at aid site’
The man in the room acting as backchannel for Hamas in negotiations with US

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Another potential challenge is that Mr Netanyahu has repeatedly said Hamas must be disarmed, which is a demand the militant group has so far refused to discuss.

Hamas has said it is willing to free all the hostages in exchange for a full withdrawal of Israeli troops and an end to the war in Gaza.

Israel rejects that offer, saying it will agree to end the war if Hamas surrenders, disarms and goes into exile – something that the group refuses.

Previous negotiations have stalled over Hamas demands of guarantees that further negotiations would lead to the war’s end, while Mr Netanyahu has insisted Israel would resume fighting to ensure the group’s destruction.

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