Overview

• Multiple Danish airports, including Aalborg, Billund, Esbjerg, Sønderborg and the Skrydstrup airbase, halted flights on Wednesday night after drone sightings, following a brief closure at Copenhagen earlier in the week.
• Officials labeled the pattern a hybrid attack carried out by a professional, systematic actor rather than hobbyist activity.
• The Defence Ministry said it had the capability to shoot the drones down but refrained in built-up areas to protect civilians.
• Copenhagen has contacted NATO and the EU and is considering invoking Article 4, while preparing proposals to strengthen authorities’ ability to counter hostile drones.
• Investigators have not identified who launched the drones or from where; officials say there is no evidence linking Russia, which has denied involvement, and a separate Oslo case saw a drone recovered and a man detained.