File: A United States Air Force B-52 Stratofortress strategic bomber takes off from RAF Fairford on March 19, 2026 in Fairford, England.
Leon Neal | Getty Images
Counterterrorism police are investigating whether people “working on behalf of a foreign state” were behind an alleged bomb threat against a U.K. base hosting the U.S. Air Force — as Iran denied speculation it was involved.
British police arrested five men on Sunday near RAF Fairford in the west of England on suspicion of explosives and terrorism offenses. They were released on bail on Monday.
Laurence Taylor, the head of counter-terrorism policing at London’s Metropolitan Police, said at a press conference that officers were investigating whether the foiled attack was the work of “proxies or individuals, either knowingly or unknowingly, working on behalf of a foreign state.”
RAF Fairford has been used as the U.S. Air Force’s command outpost for operations from Europe and for American strikes on Iranian missile sites.
In July, Iran’s Revolutionary Guard warned any base used in airstrikes on the Islamic Republic was a legitimate target. Iranian Ambassador Seyed Ali Mousavi has previously said allowing U.S. bombers to launch from the Fairford base was an “important matter for our self-defense.”
The Iranian Embassy in London said on Monday that it “categorically” rejected and “strongly condemns” speculation linking the country to the alleged plot.
In a statement posted on social media, Iran’s embassy said: “The Circulation of such fabricated speculations, particularly in the aftermath of the criminal acts of aggression committed by the United States and the Israeli regime against the Iranian people, will serve no purpose other than to fuel Iranophobia propaganda in the UK.”
It added: “The Islamic Republic of Iran reserves the right to take appropriate legal measures, as necessary, to safeguard the rights and interests of the country and its people in response to misleading and damaging media narratives.”
Asked about the potential for Iranian involvement in the alleged plot, U.K. Defence Secretary Wes Streeting said on Monday it would be “very unwise” for him to speculate.
U.K. Prime Minister Andy Burnham, meanwhile, described the incident as “deeply concerning” and said his government was taking “every step necessary” to protect communities and keep the country safe.
“The investigation remains ongoing, and I would urge people not to speculate while the authorities establish the full facts,” Burnham said Sunday in a social media post.
Talks between the U.S. and Iran appeared to end in a stalemate, with U.S. President Donald Trump rejecting Tehran’s conditional offer to reopen the Strait of Hormuz.
However, Trump told Axios in a phone interview on Sunday that he expected U.S. negotiators to engage in more talks this week.
Oil prices traded sharply higher on Monday morning. International benchmark Brent crude futures with November expiry were last seen 3.8% higher at $108.32 per barrel, while U.S. West Texas Intermediate futures rose 3.9% to $95.99.