Flights have resumed at Copenhagen Airport in Denmark after reports of drones in the air led to delays and cancellations.
Denmark‘s biggest airport was forced to close on Monday evening following the sightings.
Police said two or three large drones had been seen flying in the area.
The airport halted operations at 8.26pm local time (7.26pm UK time) according to flight tracking service FlightRadar.
Around 35 flights were diverted to alternate airports, FlightRadar said.
An airport spokesperson said police were working to identify the drones but declined to provide further details, citing the ongoing investigation.
The airport was not confirmed to have reopened until midnight local time, but it warned of continued delays and cancellations.
Flights then resumed early on Tuesday, but it came as Norwegian broadcaster NRK reported that a drone incident in Oslo caused the airport to force all traffic to one runway.
Danish police added that the drones appeared to have been sent by “a capable operator,” came from multiple directions and that they disappeared after the disruption.
The force also said there was no immediate evidence that the Norwegian incident was related.
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‘It’s quite scary’
Copenhagen Police Deputy Assistant Commissioner Jakob Hansen later said that the drones had “disappeared”, with officers not having “taken any of them”.
Sky News presenter Jonathan Samuels, who was at Copenhagen airport, said passengers were stuck on aircraft about to take off, while others were in the terminal with limited information about when their flights might depart.
Passenger Louise McFadzean said she was waiting at the gate about to board a flight to Heathrow when she suddenly “saw blue lights on the runway”.
“We were told the plane we were due to get had been diverted to Sweden,” she added.
“It’s quite scary, and I don’t know when I’m going to get home.”
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It comes after disruption at Heathrow Airport last week following a cyber attack that also hit other major airports in Europe.
The cyber attack targeted a service provider for check-in and boarding systems.
The “technical issue” that hit Collins Aerospace resulted in 14 flights being cancelled at Brussels Airport on Saturday and several more at Heathrow, Berlin, Dublin, and others.
Passengers complained they were unable to check in online, instead queuing for hours for staff to deal with them manually at desks and departure gates, where they were told their flights would not be taking off.
