UK Investigates Iran Link in Suspected Bomb Plot at US Air Force Outpost

Five British nationals have been arrested near RAF Fairford on suspicion of preparing a terrorist act, as investigators examine whether Iran was connected to a suspected bomb plot against the U.S. Air Force outpost.

The men, all London residents aged 23 to 25, were detained early Sunday after police found three vans about 400 meters from the Gloucestershire base.

They were initially arrested over suspected explosives offenses and subsequently on suspicion of preparing an act of terrorism.

No charges have been announced. Police have cautioned that it is too early to establish a motive, and investigators have not determined whether a foreign state directed the alleged operation.

Possible Iranian Connection

The Telegraph reported that police considered Iran the most likely state actor behind the suspected plot.

Investigators are also examining other possibilities, including Russian involvement and militant groups operating without state backing.

Fairford hosts American bombers and has supported U.S. operations against Iran.

In July, Iran’s Islamic Revolutionary Guard Corps threatened the base, describing facilities used to attack Iranian territory as a “legitimate target.”

That threat forms part of the backdrop to the inquiry. Authorities have not established a connection between Tehran and the five men yet.

Deputy Assistant Commissioner Vicki Evans, the senior national coordinator for Counter Terrorism Policing, stressed the investigation's preliminary stage.

“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.”

Suspicious Vans Triggered Arrests

Police said a late-night report about suspicious vehicles prompted their response.

A local farmer told The Telegraph she encountered vans obstructing a road before seeing several men, some wearing face coverings, running through nearby fields.

Army bomb-disposal specialists deployed a robot to examine the vehicles.

Investigators are assessing materials believed to be consistent with improvised explosive devices; their composition has not been publicly confirmed.

Residents of 85 homes in nearby Whelford were evacuated and could not return on Monday morning.

Police maintained a cordon, while overnight searches generated further investigative leads.

Gloucestershire police said they were not seeking additional suspects and believed the incident was contained.

Differing Accounts of Prior Surveillance

President Donald Trump suggested the arrests followed an extended surveillance operation involving American and British authorities.

“They were looking to do big damage to our fort. And working with the British worked out great,” he told reporters on Sunday.

His account differed from the police explanation that a report of suspicious vehicles triggered the arrests.

The Telegraph reported that the operation had neither been planned nor initiated through intelligence.

Security Measures Tightened

Fairford moved to its highest alert level, while RAF Lakenheath, which also hosts U.S. forces, raised its threat level to Charlie, the second-highest.

The U.S. Air Force declined to disclose specific protective measures.

The American embassy in London advised U.S. citizens in Britain to remain cautious and attentive to their personal security.

Police said they were working with partner agencies to establish the circumstances and nature of the suspected threat.