The U.S. military moved several aircraft from RAF Mildenhall in Suffolk, England, on Monday, November 9, following a reported threat linked to Iran.

Reuters, citing The Wall Street Journal, said two American refueling tankers were diverted to Germany earlier in the day. Several additional tankers were subsequently relocated to Germany and other locations.

The exact nature of the reported threat remains unclear, with U.S. officials still assessing whether it was immediate or more general.

Security measures at RAF Mildenhall and RAF Lakenheath were raised to Force Protection Condition Charlie, the second-highest U.S. military security level, which applies when intelligence indicates terrorist activity is likely.

A British Ministry of Defence spokesperson declined to discuss American military movements, explaining that aircraft regularly relocate for operational reasons.

The developments follow a September security incident at RAF Fairford, where five British men were arrested. The incident prompted the United States to withdraw B-1 bombers from the base.

RAF Fairford had previously been used by American bombers during military strikes against Iran.