A fire broke out early Sunday at RAF Fairford in Gloucestershire, a base currently used by the US military.
Emergency crews responded quickly, and images showed significant damage, including a collapsed roof.
Officials confirmed no injuries and no damage to RAF aircraft, though the status of US equipment is unclear.
The fire occurred in an unoccupied, disused building and was likely caused by faulty wiring, and it has since been contained, the Mirror has reported.
The base has recently drawn protests due to its role in US operations related to tensions with Iran.
