A 22-year-old British national has been arrested on suspicion of preparation of terrorist acts in connection with an incident near RAF Fairford, counter-terror police announced. The arrest occurred in Westminster, London, on Tuesday as part of an ongoing investigation into suspicious vehicles reported near the airbase in Gloucestershire on September 27.

This marks the seventh arrest related to the incident, though no charges have yet been filed. The initial event led to a major incident declaration and the evacuation of dozens of homes after police were alerted to three suspicious vehicles in proximity to the airbase.

Senior national coordinator for Counter Terrorism Policing, Vicki Evans, stated that the investigation remains active and police are pursuing multiple lines of inquiry. The arrested individual is the latest in a series of detentions connected to the September 27 event.

The implications of this ongoing investigation are significant given RAF Fairford's strategic importance. The base has recently been used by the U.S. Air Force to operate B-1 and B-52 bombers, following UK approval for defensive strikes against Iran.

Prior to this latest arrest, five men aged between 23 and 25 were detained near the base on September 27 on suspicion of explosives offences and later of preparing a terrorist act. They were subsequently released on police bail, a decision police described as an investigative strategy grounded in experience.

A sixth individual, a 25-year-old dual Iranian-British national, was arrested in Westminster on October 1 and also released on bail. The focus of the investigation remains on understanding the nature of the threats and the individuals involved.

Recent developments saw the U.S. withdraw its bombers from RAF Fairford, a move U.S. President Donald Trump attributed to unspecified threats. He indicated the aircraft were moved "rather than tempting the enemy." U.S. Vice-President JD Vance described the relocation as an "abundance of caution."

While U.S. European Command declined to discuss intelligence matters, a spokesperson affirmed the U.S. military's commitment to assessing threat environments and maintaining a high state of readiness to protect its personnel and assets at bases.