British counterterrorism police arrested a 25-year-old dual British-Iranian national in Westminster, London, on Thursday, October 1, 2026. The arrest was made on suspicion of the preparation of terrorist acts in connection with an investigation into suspicious activity near the RAF Fairford airbase in Gloucestershire. A second man, aged 26, was also questioned by authorities, and two properties in London were searched as part of the ongoing inquiry.
The investigation follows an incident on Sunday, September 27, 2026, when armed officers arrested five British men in their 20s near the airbase. A local farmer alerted police after observing three white vans and masked men in the area at approximately 1:30 a.m. While no improvised explosive devices were found in the vehicles, police recovered a quantity of petrol and established a 400-meter cordon, resulting in the evacuation of 85 nearby homes. The five men were later released on bail.
RAF Fairford is owned by the United Kingdom but operated by the United States, which has used the base to station B-52 and B-1 bombers for missions involving Iran. In July, Iran’s Revolutionary Guards warned that any base used for aggression against Iranian territory would be considered a legitimate target. Prime Minister Andy Burnham stated there are "strong indications" that Iran played a part in the incident, an assessment supported by U.S. Secretary of State Marco Rubio, who said the plot involved a "foreign actor."
The scale of the incident involves multiple arrests across two cities and the mobilization of national counterterrorism units. While the five initial suspects were released on bail, they remain under investigation and are subject to strict bail conditions. The U.S. government, led by President Donald Trump, has confirmed that both U.S. and British authorities had the individuals under surveillance prior to the arrests. The physical impact was felt in the early hours of Sunday through road closures and the deployment of a bomb disposal unit to inspect three vehicles.
A person living near these bases or working within the defense sector would notice heightened security protocols and a more visible military presence. The incident serves as a precedent for how U.K. authorities handle suspected state-sponsored sabotage or terror plots involving foreign nationals. Iran has "categorically rejected" the allegations of involvement, summoning the British ambassador in Tehran to protest the claims. The next steps include the interrogation of the newly arrested 25-year-old and the continued forensic analysis of evidence gathered from the searched London properties. No specific trial dates or further deadlines have been reported.