Aalborg Airport in Denmark, serving commercial and military flights, was shut down for several hours on the morning of September 25 due to drones in its airspace. According to Reuters, the Danish national police confirmed the report.

The North Jutland police informed reporters that «more than one drone» was spotted flying with lights activated near Aalborg Airport. The drones were in the area for approximately three hours. Police stated that these drones operated similarly to those that halted flights at Copenhagen Airport a few days prior.

Authorities assured that passengers at Aalborg Airport and local residents were not in danger. They added that three flights were redirected to other airports.

North Jutland police indicated that they could not identify the type of drones or confirm if they were the same ones that flew over Copenhagen Airport on Monday, and reported that attempts to shoot down the drones had been unsuccessful, with no suspects apprehended.

«It’s too early to say what the purpose of the drones was and who is behind this,» a police spokesperson stated.

Later, police reported that drones were also spotted near airports in the Danish cities of Esbjerg, Sonderborg, and Skrydstrup. Skrydstrup hosts a base for F-16 and F-35 fighter jets.

The Danish Armed Forces confirmed they are assisting local and national police in the investigation but declined to comment further.

 Copenhagen International Airport ceased all incoming and outgoing flights on the night of September 23 due to the sighting of 2-3 large drones nearby. Danish police and the Security and Intelligence Service (PET) stated on Tuesday that this is a «very serious situation» and an investigation is underway, as noted by The Guardian. Authorities believe that the drones were likely operated by a «skilled operator».