Drone activity near four airports in Denmark overnight was the “work of a professional actor”, Denmark’s defence minister has warned just two days after the country’s main hub was shut down in response to sightings that rattled European aviation.
Aalborg airport, in north Denmark, was forced to shut down after the drone sightings, while three smaller airports in the region– Esbjerg, Sonderborg and Skrydstrup – remained open despite similar incidents.
