A fire broke out at RAF Fairford in Gloucestershire in the early hours of Sunday, triggering an emergency response and safety warnings for nearby residents.
Gloucestershire Fire and Rescue Service confirmed it was tackling a blaze in a commercial building in the Fairford area, with crews deployed to contain the situation. Authorities urged residents to keep their doors and windows closed due to smoke spreading from the site.
Videos shared online appeared to show flames and thick smoke rising from a unit within the base, although officials have not yet confirmed the exact cause or origin of the fire.
RAF Fairford is used by the United States Air Force, and has recently been associated with operations involving US bombers in the Middle East, including missions linked to Iran.
Emergency services remain on site, with no official confirmation yet on casualties or the extent of damage.