The U.S. military has withdrawn all 12 B-1 bombers from RAF Fairford, a British airbase in Gloucestershire, following a suspected terror plot, the Pentagon confirmed on Sunday. The aircraft returned to their home bases in the United States, though officials cited operational security for not disclosing the move in real time .

The withdrawal came after British police investigated a Sept. 27 incident near the base, where three suspicious vehicles were spotted. Six people, including a British-Iranian dual national, were arrested in connection with the case and later released on bail .

British authorities linked the incident to Iran, which denied involvement. RAF Fairford has been used by the U.S. for operations against Iran, including strikes on Iranian missile positions targeting ships in the Strait of Hormuz . Aviation trackers observed multiple B-1 bombers departing the base on Sunday .