RAF Fairford ‘bomb plot’ probe examines possible Iran link as five men remain in custody

New Delhi: British counterterrorism investigators are examining a possible Iranian connection to a suspected bomb plot near RAF Fairford, the Gloucestershire airbase used by American aircraft for strikes against Iran. Five men remained in custody on Monday, following arrests that triggered a major security operation and the evacuation of neighbouring homes, although authorities have not publicly established who was responsible.

According to the official police statement, officers received a call at about 12.45am (6.16am IST) local time on Sunday about three suspicious vehicles apparently heading towards the airbase. Armed officers subsequently detained five men in Whelford, a village adjoining the installation, initially on suspicion of offences under explosives legislation.

The men were later additionally arrested on suspicion of preparing a terrorist act, with counterterrorism police taking charge of the investigation. The official account described arrests on suspicion of offences, rather than the filing of criminal charges, and did not identify the suspects or disclose their nationalities.

British media reported that suspected improvised explosive devices in the vans. Tests were continuing to establish whether they could function.

British Army bomb-disposal specialists examined the vehicles inside a 400-metre cordon, while approximately 85 households were evacuated as a precaution. The senior national coordinator for counterterrorism policing and deputy assistant commissioner, Vicki Evans, said investigators were gathering evidence and working with Gloucestershire police to establish the circumstances.

The possible involvement of Iran has become a significant strand of the inquiry because of Fairford’s military role but remains unproven. British media reported that investigators were considering whether representatives of the Iranian government had paid other people to carry out the suspected plot.

A source familiar with the investigation told Reuters that an Iranian-linked motive was considered the likeliest explanation, while Russian sabotage and an Islamist plot were also being examined. Iran has repeatedly rejected allegations of involvement in attacks and plots abroad; the report did not establish a connection between Tehran and the five detainees.

The US president, Donald Trump, praised the arrests and said the suspects had been watched for a considerable period. However, ITV reported that the police operation was not intelligence-led, leaving a discrepancy between that account and Trump’s description of prior surveillance.

For residents, the immediate consequence was an evacuation with no clear prospect of returning home on Sunday evening. A reception centre opened at Cirencester Leisure Centre, while the assistant chief constable of Gloucestershire police, Richard Ocone, urged the public to follow official information and avoid speculation.

The British prime minister, Andy Burnham, described the incident as deeply concerning and said protecting the public remained the government’s priority. The US Air Force said it was maintaining vigilance but declined to explain individual protective measures because of operational security considerations.

Fairford’s importance extends beyond the current conflict: it provides Washington with an established European operating location for long-range bomber deployments. The US Air Force identifies the installation as its preferred forward bomber location in Europe for Global Strike Command and lists it as the home of the 501st Combat Support Wing headquarters and the 420th Air Base Squadron.

The base has supported American operations in previous conflicts, including the Gulf War and the 2003 invasion of Iraq. Its long runway and established support infrastructure allow heavy aircraft and visiting units to operate from a prepared overseas facility, making it a significant component of American military reach beyond Europe.

Its role acquired renewed political sensitivity during the Iran conflict, when American B-1 and B-52 bombers deployed there. Britain initially withheld permission for strikes from its bases before authorizing operations that London characterized as defensive action against Iranian missiles and associated launch facilities.

The UK House of Commons Library’s account of the arrangements records British permission in March this year for limited defensive operations against Iranian missile facilities. That authorization is relevant because American access to British installations does not confer unrestricted permission to conduct combat missions from them.

Operational use requires a joint decision by the two governments, with requests for overseas military action assessed individually, including their legal basis. American forces remain in Britain at the British government’s invitation, under arrangements incorporating the Nato Status of Forces Agreement, the Visiting Forces Act 1952 and bilateral agreements.

Those military arrangements explain Fairford’s strategic significance, but cannot establish the motive behind the suspected plot. The unresolved questions remain what the vehicle examinations establish, what the detainees allegedly intended and whether evidence supports any connection to an external organization or government.