Denmark weighs invoking NATO's Article 4 as unidentified drone sightings plague the country

Numerous drones have reportedly breached Danish airspace this week, causing disruptions at multiple airports throughout Denmark.

Drone sightings have been reported at major airports in the country, such as Copenhagen and Aalborg, and smaller airports Esbjerg and Sonderborg. There were also drone sightings at the air stations and soldier barracks throughout Denmark, where there are fighter jets and military transport aircraft.