In the village of Beck Row, Suffolk, which is situated next to RAF Mildenhall, residents reported brightly lit aerial vehicles hovering above their houses and over the base itself. Casseem Campbell, 28, said he had seen objects above his house in Beck Row.

The British military has increased security around four air bases in the country that are used by U.S. forces after "a number" of drones were spotted near them.

Small, unmanned craft were seen flying over four bases in England, the U.S. Air Force in Europe said. The Pentagon said that there had not been “any significant mission impact.”