- Five British men in their early 20s from London were arrested near RAF Fairford on Sunday and released on bail Monday; all five remain under investigation.
- UK counter-terrorism police are examining whether individuals acting "on behalf of a foreign state" were involved — but no country's role has been officially confirmed.
- US Secretary of State Marco Rubio told Fox News the incident "clearly involves the hands of a foreign actor," offering no evidence and naming no country.
- Iran's embassy in London categorically denied involvement; a source told Reuters the suspects' three white vans did not contain viable explosives.
British police said on Monday they are investigating whether a suspected plot to attack RAF Fairford, the Gloucestershire airbase that houses US bombers, involved individuals acting on behalf of a foreign state. Five men arrested near the base on Sunday have been released on bail, but counter-terrorism chiefs insist the case is far from over.
The arrests came after a local farmer alerted police to three white vans driving toward the base in the early hours of Sunday. The men, all British nationals from London in their early 20s, were first detained on suspicion of explosives offences and later also arrested on suspicion of preparing an act of terrorism. They were released under stringent bail conditions on Monday.
A B-52 Stratofortress lands at RAF Fairford during a Bomber Task Force deployment. The base is used by US bombers that have flown missions against Iran. (U.S. Air Force photo / Wikimedia Commons, public domain)
"This does not mean the investigation is over"
Laurence Taylor, who heads Britain's counter-terrorism police, announced the release outside London police headquarters, stressing that bail changes nothing about the probe. "To be very clear, this does not mean that the investigation is over," he said. "They absolutely remain under investigation as we explore multiple lines of enquiry."
Taylor said police were considering every angle, "including that this may be actively committed by proxies or individuals either knowingly or unknowingly working on behalf of a foreign state." A source familiar with the investigation told Reuters that an Iranian-linked motive was considered the most likely, though Russian sabotage or an Islamist plot were also in play. The source added that the vans did not contain viable explosives and the police response had not been intelligence-led — the men were apparently not under surveillance, though security at the base had been beefed up beforehand.
The "foreign actor" claim — what we actually know
The most headline-grabbing claim came late on Monday from US Secretary of State Marco Rubio. Speaking to Fox News's Hannity programme, Rubio said: "What happened, what almost happened, what could have happened in the UK over the weekend is a very serious situation. It's one that clearly involves the hands of a foreign actor. I won't get into great detail about that yet."
Rubio provided no evidence and named no country, though he suggested more information could emerge in the coming days. US President Donald Trump, meanwhile, told reporters at the White House that the incident "might be" connected to Iran, and said he would not have released the suspects on bail. "I wouldn't have done that," he said. On Sunday, Trump had called the arrests "fantastic" and claimed the US and UK had been monitoring the suspects "for a long time" — a statement that sits uneasily beside Reuters's reporting that the police response was not intelligence-led.
Iran has rejected any link. Its embassy in London said it "categorically rejects and strongly condemns" the "unfounded and malicious speculations" that Tehran was involved, which it said would fuel "Iranophobia propaganda" in Britain. No UK or US official has publicly attributed the incident to any specific state. That's an important line to keep in mind: speculation is running hot, but attribution remains unproven.
B-52s take off from RAF Fairford, the base at the centre of the suspected plot investigation. (U.S. Air Force photo / Wikimedia Commons, public domain)
Why RAF Fairford is such a target
RAF Fairford is a UK-owned base in western England used by US Air Force strategic bombers in Europe. B-52s based there have flown missions across the Middle East, including strikes against Iran during this year's US-Iran war, according to Reuters. Iran's Revolutionary Guards declared in July that the base was a legitimate target.
That's what makes this more than a local security story. With the US at war with Iran since late February, any attack plot against a bomber base feeding that campaign lands in the middle of a live conflict. Police declared a major incident at the base on Sunday, and the British government held a national emergency meeting.
What happens next
The five suspects are free on bail under strict conditions governing their movements and contacts, while detectives pursue what Taylor called multiple lines of enquiry. Rubio has hinted Washington may reveal more in the coming days.
I'll be honest: stories like this have a way of sprinting ahead of the evidence in the first 48 hours. The farmer-with-a-phone detail is what sticks with me — the year's most dramatic counter-terror operation in Britain apparently began with a tip from a country lane, not a surveillance dossier. Until police or MI5 put a name to the "foreign actor" claim, treat the attribution talk as exactly what it is: a claim, not a conclusion.
