COPENHAGEN: Large drones that flew over Copenhagen airport for hours and caused it to shut down constituted the “most serious attack on Danish critical infrastructure” to date, Prime Minister Mette Frederiksen said Tuesday. Airports in Copenhagen and Oslo reopened early Tuesday, hours after unidentified drones in their airspace caused dozens of flights to be diverted or canceled, disrupting travel for thousands of passengers.

Die Sichtung von zwei bis drei große Drohnen sorgt dafür, dass am wichtigsten Flughafen von Dänemark vorübergehend nichts geht. Die Hintergründe? Noch völlig unklar.

Both airports have been reopened, with Danish police unable to confirm origin of drones.