One is following this together with Norway and Denmark to get a picture of the information they have about the events of the night, says Rebecca Landberg, press spokesperson at the Stockholm police, to the newspaper.
According to Landberg, who was at the meeting, the police are always ready to act if similar situations were to occur at Arlanda airport.
The Security Service is reticent and can neither confirm nor deny a cooperation with Denmark.
But in general, we cooperate both nationally and internationally in various issues, but we very rarely comment on individual cases, says Karl Melin at the Security Service's press service to TT.
Ellen Laurin, deputy press chief at Swedavia, says in an email that they "have preparedness regarding events at our airports and cooperate with the police and relevant authorities in these matters".
It was late on Monday that a number of drones flew in over Copenhagen's airport Kastrup and stopped traffic for around four hours. The airport reopened just after midnight. Over 30 departures and around 20,000 passengers were affected by delays.
The police describe the incident as a drone attack and call the situation "very critical".
