Several aircraft en route to Arlanda were forced to land at Skavsta instead on Sunday evening due to an alarm about a drone near the airport's airspace.

At just before 9 p.m., the airspace over Arlanda was forced to be closed due to the drone alarm.

This resulted in several flights being diverted to Skavsta.

Ten minutes later, the airspace was able to reopen, according to Swedavia's press service, but some consequential delays in air traffic remain.

Source: sverigesradio.se