Sky News: in Great Britain, drones were spotted over a US air force base, after which an air raid alert was announced

Drones were spotted over a US air force base in Great Britain, after which an air raid alert was announced, Sky News reports. According to the outlet, American military personnel stationed at RAF Lakenheath air base were ordered to take shelter due to "suspected activity of unauthorised drones". Air raid sirens were heard at the base due to the drone activity.