FAIRFORD, England (AP) — Iran’s embassy in London on Monday denied any involvement in a suspected plot targeting a U.S. operated air base in England.
The embassy said in a statement that it “categorically rejects and strongly condemns the recent unfounded and malicious speculations” surrounding the arrest of five men near the base in western England.
Five British men have been arrested on suspicion of planning a terror attack,
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UPDATE. AP’s earlier story follows below.
FAIRFORD, England (AP) — Police were holding five men on Monday and examining suspected explosives found near a U.S.-operated air force base in England, as counterterror detectives investigated whether the arrests foiled an attempted attack linked to Iran.
The men were detained early Sunday after three vans were spotted near RAF Fairford, a U.K.-owned base that has been used by American bombers during decades of conflicts in the Middle East.
Investigators have not concluded whether the incident is a state-backed attack. They are investigating a possible link to Iran, Russia or non-state-backed militant groups. RAF Fairford has also been the focus of protests by anti-war campaigners.
The five suspects, who have not been named, were initially held over suspected explosives offenses, and later also arrested on suspicion of preparing an act of terrorism.
Police said the men are all British nationals from London and in their 20s. They can be held in custody for up to 14 days before they must be charged or released.
Residents were evacuated from 85 homes in the village of Whelford near the base on Sunday and army bomb-disposal experts used a robot to examine three white vans. The villagers had not been able to go home as of Monday morning, and the vans had not yet been moved.
President Donald Trump said the suspects had been detained following cooperation between the U.S. and Britain, and had been “under view” for some time. Police, however, said the arrests were triggered by a late-night call about “suspicious vehicles” near the base.
British Defense Secretary Wes Streeting declined to give details of the operation, but said “it was a proud moment” that Trump had recognized “the work that our police and intelligence services do every day.”
“As and when we can, we will report back to the public about these individuals and about the nature of the threat,” Streeting told Times Radio.
The arrests come at a time of heightened tensions around the threat from hostile states, with British intelligence services saying Russia and Iran have both used proxies to commit crimes on British soil. In March, officials said the number of national security cases involving activity by hostile states, including Iran, increased 50% in the six months to December 2025.
Britain did not join the U.S.-Israeli war on Iran that began Feb. 28 and initially denied Trump’s request to use bases in the U.K. to strike Iran. But then-Prime Minister Keir Starmer agreed in March to let the U.S. use bases in Britain for what he called “defensive” operations against Iran’s missiles and their launch sites following Iranian attacks on U.K. interests and Britain’s allies in the Gulf.
American B-1 and B-52 bombers have taken off from Fairford, 100 miles (160 kilometers) west of London, for operations during the Iran conflict.
Iran has said it considers any base used to attack its territory a legitimate target.
British security officials say proxies linked to Iran have been behind a string of arson and sabotage attempts in the U.K. and other countries, many of them targeting the Jewish community. They have previously warned that Tehran could expand its targets in the U.K. if conflicts in the Middle East continue.
British Foreign Secretary Ed Miliband said Monday that the incident is a “reminder of the threats our country faces.”
Miliband met Iran’s Foreign Minister Abbas Araghchi at the United Nations in New York last week and told him that “Britain will not tolerate intimidation, threats or hostile activity on U.K. soil,” according to a U.K. readout of the conversation.
The U.S. Air Force said its personnel based at RAF Fairford “remain vigilant,” but “for operational security reasons we will not discuss specific force protection measures.”
The U.S. Embassy in London has warned Americans in Britain to be cautious and mindful of their personal security.
Trump said authorities had the suspects “under view for a long time and we got them.”
“It was an amazing job. We had them under investigation. They were looking to do big damage to our fort. And working with the British worked out great,” he told reporters in Chicago on Sunday.
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Lawless reported from Liverpool, England. Ben Finley in Washington contributed to this report.
