Iran poses 'grave' threat to UK, police warn after arson attack

Police are investigating whether an Islamist group with possible links to Iran is behind an arson attack on a Jewish ambulance service in north London.

Four ambulances were destroyed in the blaze following a "loud explosion" that erupted at 1.40am on Monday at the base for volunteer group Hatzola in Golders Green.

Metropolitan Police said CCTV footage showed three hooded individuals pouring accelerant on the parked vehicles, with investigators analysing hours of footage to identify the suspects.

Is Iran behind the attack?

Islamist group Harakat Ashab al-Yamin al-Islamia (HAYI) has claimed responsibility online for the attack, which is so far being treated as an antisemitic hate crime rather than a terror attack.

It is a newly formed group believed to be aligned with Iran and appears to have posted a video on Telegram showing a map of the location of the attack and the ambulances on fire.

The Met said detectives were aware of the claim of responsibility and were working to determine its authenticity.

Commissioner Sir Mark Rowley said while it was "too early" to attribute the attack to Iran, the "rapid growth in recent years of Iranian state threats is grave".

"Britain's Jewish community has in recent years been increasingly targeted by individuals, groups and hostile states, intent on spreading fear, hate and harm," he warned.

We must stand together, says PM

Prime Minister Sir Keir Starmer condemned the incident as a "deeply shocking, antisemitic attack", amid criticism from Jewish leaders that the government needed to do more to combat anti-Jewish hate.

"Antisemitism has no place in our society, and it's really important we all stand together at a moment like this," he said.

On Monday night, about 250 protesters - including many waving Israeli flags and signs saying, "no Jew hate" - gathered in Golders Green, with some chanting "Keir Starmer, Jew harmer".

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'We need to root out this hatred'

Home Secretary Shabana Mahmood said the attack was an "attack on this country and on us all".

"Jewish life in this country is indivisible from our national life," she told the Commons.

"Freedom of Jewish worship is an embodiment of who we are - as is the freedom of British Jews to go about their lives in safety and without fear."

Conservative leader Kemi Badenoch said there had been an "increase in the hatred of Jews" and Jewish people wanted to see actions "not just words".

"We need to root out this hatred from its source. It's coming from many places, a lot of misinformation, and even in some extreme cases, extreme Islamist groups," she said.

Israel's president expressed the country's "strength and solidarity" with Britain's Jewish community after the attack.

"We will continue to stand together shoulder-to-shoulder with you in the critical fight against antisemitism," he said.

The UK's chief rabbi Sir Ephraim Mirvis said the "horrific" attack was an "act of deep evil", adding that there had been an increase in antisemitic incidents across the world.

"It's an outright miracle that nobody was injured," he said.

(c) Sky News 2026: Iran poses 'grave' threat to UK, police warn after arson attack