https://droneincidents.com/feeds/incident/arlanda-airport-alarm-2024-09-09.xmlDroneLedger: Unresolved drone alarm temporarily closes Stockholm Arlanda Airport2026-10-15T19:30:46.072000ZDroneLedgertag:droneincidents.com,2026:revision/arlanda-airport-alarm-2024-09-09/1Unresolved drone alarm temporarily closes Stockholm Arlanda Airport: revision 12026-10-15T19:30:46.072000ZCurated dossier created after checking the cited sources line by line.