The Guardian
Miranda Bryant
25 September 2025
Drones overfly four more airports forcing Aalborg to halt traffic two nights after shutdown at Copenhagen terminals
Denmark’s defence minister says the country has been the victim of a professional hybrid attack after drones flew over four airports overnight in the second such incursion in a matter of days.
The drone sightings began shortly before 10pm on Wednesday and ended just before 1am on Thursday. Flights were halted for several hours at Aalborg airport, which also serves as a military base, and airports in Esbjerg, Sønderborg and Skrydstrup were also affected. Skrydstrup is home to some of the Danish military’s fighter jets.
On Monday night Copenhagen airport was forced to close as a result of the presence of three drones.
He said Denmark was considering activating Nato’s article 4, for the first time in Danish history, but a decision had not yet been made. Denmark contacted Nato on Thursday morning, he said, adding: “In addition to article 4, there are other things that can be done through Nato.”
