UK Says Iran's Revolutionary Guard 'Almost Certainly' Directed RAF Fairford Plot; 29 Nations Back Attribution

Britain on Monday formally pinned the suspected plot near RAF Fairford on Iran, with Prime Minister Andy Burnham telling the House of Commons that the September 27 incident was "highly likely" coordinated from Iran and "almost certainly" directed by the Islamic Revolutionary Guard Corps (IRGC). Within hours, London summoned Tehran's ambassador, imposed fresh sanctions and secured a joint statement of support from 29 countries, including the United States.

The announcement moves the case well beyond the stage our earlier coverage described, when counter-terror police were only examining whether the five arrested British men had acted as proxies for a foreign state.

What Burnham told Parliament

Burnham said the government would not tolerate threats on British soil and promised an immediate crackdown on Iran's use of criminal networks to recruit or manipulate people inside the UK. He said ministers would use their full range of powers to go after those networks and their funding, and signalled that further sanctions aimed at limiting the ability of Iran and the IRGC to cause harm were on the way.

The language matters. Governments rarely make a public attribution to a foreign state's security apparatus unless they are confident in the intelligence, because doing so commits them to a diplomatic and legal response.

Ambassador summoned, two Iranians sanctioned

Foreign Secretary Ed Miliband said he had instructed his department to summon Iran's ambassador, Seyed Ali Mousavi. The meeting was conducted by Stephen Doughty, the minister of state for the Middle East, who delivered the message that London would not accept hostile activity by Tehran.

Alongside the summons, Britain designated two Iranian nationals for sanctions over their alleged involvement in state-linked hostile activity, including threatening, planning or carrying out attacks outside Iran.

A coalition of 29 countries

The Foreign Office also released a joint statement from foreign ministers of 29 countries, among them the US, France, Germany, Canada and Australia, formally recognising the UK's attribution. The signatories said the episode showed the IRGC's willingness to run operations abroad through covert networks and proxy actors, and condemned what they described as a broader pattern of Iran-linked plots, arson, sabotage and cyberattacks. They pointed to recent attacks in Europe on Jewish communities, Iranian journalists and US interests, and pledged closer cooperation on investigations and prosecutions.

Tehran denies involvement

Iran rejected the accusation. According to Iranian state media, Mousavi denied any role in the Fairford incident and said Tehran was ready to cooperate with British authorities on the investigation, adding that such an offer had already been made.

Why it matters

RAF Fairford in Gloucestershire has been a key launch point for US heavy bombers during the war with Iran, which makes an alleged IRGC-directed operation there a direct challenge to a NATO ally's territory. The attribution comes as tensions in the Gulf remain acute, with the Strait of Hormuz still restricted and talks between Washington and Tehran stalled, and it raises the prospect of further European sanctions and tighter scrutiny of Iranian-linked networks across the continent.

This is an original summary based on public reporting. See our editorial policy for how we source, write, and correct our stories.