Unknown drones raised the alarm at US air bases in the UK, the military was sent to the shelters of secret drones sighted above Lakenheath air base, after which US troops were ordered to take immediate cover. The US Air Force confirmed the incident and began to investigate. Later, Sarnes was heard at second base, Flatwell. Over the loudspeakers, the staff urged to stay indoors and seek shelter. The US headquarters said that no casualties were suffered and no planes and infrastructure were damaged. The origin of the drones was established.