A fig of unidentified drones person been spotted implicit 3 airbases successful Britain, the United States Air Force (USAF) has confirmed.
The incidents, which occurred betwixt Wednesday and Friday, saw "small unmanned aerial systems" spotted implicit RAF Lakenheath and RAF Mildenhall, successful Suffolk, and RAF Feltwell successful the neighbouring region of Norfolk.
The USAF, which uses the bases, said it was unclear astatine this signifier whether the drones were considered hostile.
It besides declined to remark connected whether immoderate defence mechanisms were used, but said it retained "the close to protect" installations.
A spokesperson for USAF successful Europe said: "We tin corroborate that tiny unmanned aerial systems [UASs] were spotted successful the vicinity of and implicit RAF Lakenheath, RAF Mildenhall and RAF Feltwell.
"The fig of UASs fluctuated and they ranged successful size/configuration.
"The UASs were actively monitored and installation leaders determined that nary of the incursions impacted basal residents oregon captious infrastructure.
"To support operational security, we bash not sermon our circumstantial unit extortion measures but clasp the close to support the installation.
"We proceed to show our airspace and are moving with host-nation authorities and ngo partners to guarantee the information of basal personnel, facilities and assets."
RAF Mildenhall is chiefly location to the USAF's 100th Air Refueling Wing; RAF Lakenheath is location to USAF F-35A and F-15E combatant jets, portion RAF Feltwell is chiefly acrophobic with logistics and offers lodging for subject personnel.