About 20,000 passengers were affected by the temporary closure of the airport in the Danish capital Copenhagen last night due to drones spotted in its area, the airport authority announced today, quoted by Reuters, BTA reported.
Prime Minister Mette Frederiksen said that this was the "most serious attack on Danish infrastructure to date", and the Scandinavian country's intelligence services said that they were checking whether it was a hybrid attack.
According to Danish police, the drones were "skillfully" controlled and disappeared in a timely manner. "We don't know who was behind their appearance", Copenhagen police explained.
The drones forced the suspension of take-offs and landings of planes. This concerns 31 flights, the airport specified. A chain reaction followed, as a result of which about 100 flights were canceled or delayed. Oslo airport also suspended operations for several hours.
Inspector Jens Jespersen, a spokesman for the Danish police, said that the drones over Copenhagen came from different directions, turning their lights on and off. After a few hours, the unmanned aircraft disappeared.
In recent days, there have been violations at other European airports. Cyberattack against the American company "Collins Aerospace" (Collins Aerospace), which maintains check-in and boarding systems, has caused disruptions to operations at London's Heathrow Airport. There were also disruptions at airports in Berlin and Brussels.