Unidentified drones flew over Danish military sites including its biggest base overnight following a slew of earlier sightings that Copenhagen has termed a “hybrid attack”, hinting at possible Russian involvement.
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Neighbouring Norway was also investigating “possible sightings of drones” early on Saturday near its biggest military base, Orland, where its F-35 fighter jets are parked.
Copenhagen will host a European Union summit gathering heads of government on Wednesday and Thursday.
Denmark has accepted a Swedish offer of Stockholm’s anti-drone technology to ensure the meeting can proceed without disruption.
In Denmark, drones were confirmed at “several military sites”, a military spokesman said on Saturday, refusing to provide other details.

Danish police said “one to two drones” were observed on Friday about 8.15pm local time near and over the Karup military base, the country’s biggest base which houses all of the armed forces’ helicopters, airspace surveillance, flight school and support functions.