Copenhagen Airport has reopened after drone sightings.
Police say they have been unable to confirm the type or the number of drones seen around the airport.
It's also not known where the drones came from or flew to after they were spotted.
Authorities say between two to three large drones were reported flying in the area and take-offs and landings at the airport were suspended for approximately four hours.
A separate drone incident occurred the same evening at Oslo airport, forcing all traffic to one runway.
According to Norwegian broadcaster NRK, traffic has now returned to normal, but it's unclear who was responsible for the incident.
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