British police are investigating possible Iranian links after five men were arrested near an RAF base used by U.S. forces against Tehran, a plot Trump says sought “big damage.”
Five men were taken into custody in the early hours of Sunday near RAF Fairford in Gloucestershire after a local tip about three suspicious vans. Armed officers made the arrests on suspicion of explosives offenses and preparing a terrorist attack, and authorities declared a major incident as a 400-meter cordon went up around the vehicles.
Breitbart News reported that counterterrorism detectives are examining whether Iran had any role, a line of inquiry tied to the base’s use by American forces in operations against the regime in Tehran. The investigation remains in its early stages, and officials have also left open the possibility of non-state actors.
President Donald Trump praised the joint work and said the suspects had been under watch. He told reporters the arrest was “fantastic” and that cooperation with Britain “worked out great.”
"We had them under investigation; they were looking to do big damage to our fort and working with the British worked out great... We had them under view for a long time and we got them."
Reuters reported Trump’s account of a long-running joint look at the group and noted that an Iranian-linked motive is considered the most likely track under review, alongside other theories such as Russian sabotage or an Islamist plot. The base had been used for U.S. strikes on Iranian sites.
A local farmer dialed 999 after spotting three white vans and hooded, masked men near the base. That public tip, officials later said, supplied a partial picture of what police treated as a thwarted plot. The army’s Explosive Ordnance Disposal unit moved in to examine the vehicles while emergency crews held the perimeter.
Vicki Evans, national co-ordinator at Counter Terrorism Policing, described an investigation still gathering basic facts and evidence at the scene.
"We are in the early stages of an investigation, and five men remain in custody. As you would expect we are working closely with our partners to understand the circumstances of the incident."
Evans also confirmed the scale of the precautionary response around the cordon.
"We continue to work with Gloucestershire police to keep the community safe as we work to gather evidence from the scene. A 400m cordon has been put in place around the vehicles while the army’s Explosive Ordinance Disposal unit conduct examinations. As a precaution, around 85 households have been evacuated whilst these examinations take place."
Assistant Chief Constable Richard Ocone of Gloucestershire police said emergency services had rehearsed plans for major incidents and asked the public not to speculate. A nearby leisure centre opened for residents who could not stay with friends or relatives. He thanked those who left their homes and said crews were working to return people to their properties as quickly as possible.
The United States Air Force said personnel at RAF Fairford would “remain vigilant” but would not discuss specific force-protection measures for operational security reasons. The service added that it constantly assesses factors that shape how it protects installations, people, and families.
Fox News reported that the five suspects are UK nationals who were later released on bail while the inquiry continued. Counter-terrorism leaders have kept the foreign-state question live even as the men left custody.
Laurence Taylor, head of Counter Terrorism Policing, said investigators are examining whether the activity may have been carried out by proxies or by people working for a foreign state, knowingly or not.
"including that this may be actively committed by proxies or individuals either knowingly or unknowingly working on behalf of a foreign state."
Iran’s embassy in London rejected any connection. The mission called the speculation unfounded and malicious and said it condemned attempts to tie Tehran to the arrests near the base.
That denial lands against a longer record of Iranian-linked pressure on British soil. Last year, MI5 Director General Ken McCallum said British authorities had responded to 20 Iranian-backed terror plots against Britain and its citizens between January 2022 and October 2024. The pattern sits alongside other Iran-linked enforcement actions abroad, including cases in which the DOJ charged Iranian nationals in a sweeping cyber theft campaign tied to the Revolutionary Guard.
RAF Fairford is not an obscure strip of runway. Reporting around the arrests noted that four American bombers had used the base, including for strikes on Iranian missile targets, and that the facility supported U.S. operations after Iranian missile attacks on ships in the Strait of Hormuz. The Iranian Revolutionary Guard Corps had said any base used in America’s operations should be treated as a legitimate target.
Britain’s own base-access politics shifted under Sir Keir Starmer. He initially refused the Trump administration access to British bases for military action against Iran, then in March agreed to let U.S. forces use British bases for “defensive purposes” in the Iran conflict. The Fairford arrests now put a concrete security test next to that policy change.
Hard security measures against state sponsors of terror have moved on more than one front. Congress recently advanced pressure tools when the House sent Iran sanctions to the president’s desk after a bipartisan vote, a reminder that economic and intelligence tools often travel together.
Domestic terror arrests elsewhere show why tips, surveillance, and fast custody still matter. Readers following plot cases have seen similar charging work, including a Pennsylvania man accused of plotting an ISIS attack after police recovered a rifle and nearly 200 rounds.
No public charging documents in the available reporting name the five men, list nationalities beyond the later UK-national identification, or detail exactly what, if anything, was recovered from the vans. Officials have not announced injuries or a detonation. The operational picture so far is arrests on suspicion, a major-incident declaration, EOD exams, and a large residential evacuation while evidence was gathered.
Trump’s account frames the episode as a surveillance success shared with British partners. British counterterror leaders frame it as an inquiry still in its infancy. Both can be true at once: the men were stopped before “big damage,” and investigators still have to prove who directed them, if anyone did.
Proxy warfare is the hard problem underneath the bail papers. If hostile governments can recruit or steer people already inside a target country, classic border controls and base fences are only part of the defense. That is why foreign-state language from Counter Terrorism Policing matters even after the suspects left the cells.
Allied governments have also tightened removal tools against people tied to terror networks. The Trump Justice Department recently put old authorities back to work, including when the DOJ activated a dormant terror court to move against an Afghan woman linked to an ISIS Election Day plot, and followed with the first deportation under that process.
For Fairford, the immediate facts are simpler. A resident called in odd vans. Police and the army locked down a wide radius. Five men spent time in custody on explosives and terror-preparation suspicion. American and British leaders say the partnership worked. Iran says it had nothing to do with it. Detectives still have to show which story the evidence supports.
Open borders, soft policing, and wishful thinking about regime proxies are how bases and neighborhoods get turned into soft targets, and this weekend’s cordon is what seriousness looks like when the tip comes in time.
