Copenhagen Airport has reopened as of 7:00 AM UTC on September 23rd, 2025, following extensive disruptions caused by unidentified drone activity. The airport had been closed for several hours, leading to significant flight cancellations and diversions. Danish police are investigating the incidents, describing the perpetrator as a "capable actor" who operated drones from multiple directions and considerable distances, potentially from a ship. Over the past hour, from 6:05 AM UTC to 7:05 AM UTC, Copenhagen Airport experienced 51 diverted flights and 109 cancelled flights. This follows an earlier period of disruption that began on September 22nd. The airport's closure was extended until 07:00 UTC this morning, according to earlier reports. Authorities are working under the hypothesis that the drones may have launched from a vessel at sea. The drones reportedly originated from "many kilometers" away. The investigation into the source and intent of the drone activity is ongoing, with police stating the actor has been practicing their operations. In related developments yesterday, two foreign nationals were arrested in Oslo for illegally operating a drone near Akershus Fortress. Norwegian police also seized a drone near Oslo Airport, although a pilot was not present at the time. The broader context includes Ukrainian President Volodymyr Zelenskyy's warning yesterday in New York about potential Russian airspace provocations in response to Western moderation, made in relation to earlier drone sightings over Copenhagen.
