{
 "archiveEntity": {
  "countermeasures": [
   {
    "actor": "Avinor / Politiet",
    "generalOnly": true,
    "id": "oslo-general-response",
    "incidentUse": "reported",
    "kind": "detection",
    "quote": "I samråd med Politiet ble det også etablert et reservesystem i denne perioden.",
    "quoteCheckedAt": "2026-10-16",
    "since": null,
    "sourceIndex": 4,
    "sourceUrl": "https://kommunikasjon.ntb.no/pressemelding/18681461/fakta-om-dronedeteksjon-ved-avinors-lufthavner?lang=no&publisherId=17421123",
    "statement": {
     "ar": "أفادت أفينور بإنشاء نظام كشف احتياطي بالتعاون مع الشرطة خلال فترة الواقعة في سبتمبر 2025؛ ولم يُحدد وقت تشغيله بدقة.",
     "en": "Avinor reported a reserve detection system established with police during the September 2025 incident period; its exact activation time is unspecified.",
     "fa": "آوینور از ایجاد سامانه شناسایی پشتیبان با همکاری پلیس در دوره رویداد سپتامبر ۲۰۲۵ خبر داد؛ زمان دقیق فعال‌سازی مشخص نشده است.",
     "ru": "Avinor сообщил о резервной системе обнаружения, созданной совместно с полицией в период инцидента в сентябре 2025 года; точное время запуска не указано.",
     "uk": "Avinor повідомив про резервну систему виявлення, створену спільно з поліцією в період інциденту у вересні 2025 року; точний час запуску не зазначено."
    }
   }
  ],
  "key": "oslo-gardermoen-airport",
  "kind": "airport",
  "label": "Oslo Gardermoen Airport",
  "sourceIndex": 0
 },
 "assessment": null,
 "assessment_droneType_level": null,
 "assessment_droneType_range_high": null,
 "assessment_droneType_range_low": null,
 "assessment_droneType_subject": null,
 "assessment_operator_level": null,
 "assessment_operator_range_high": null,
 "assessment_operator_range_low": null,
 "assessment_operator_subject": null,
 "assessment_scale_version": null,
 "assessment_target_level": null,
 "assessment_target_range_high": null,
 "assessment_target_range_low": null,
 "assessment_target_subject": null,
 "attribution": "No one has been identified as responsible in the cited sources. Russia has denied involvement in the drone activity that closed the Copenhagen and Oslo airports.",
 "attributionSources": [],
 "attributionStatus": "none",
 "autoCheckedAt": null,
 "category": "airport",
 "checkedAt": "2026-10-27",
 "claims": [
  {
   "assessment": "supports",
   "axis": "operations",
   "claimant": "Avinor, Norway's airport operator",
   "id": "ops-avinor",
   "note": "Confirms the closure. The statement says drones were detected, but later reporting questions whether any were observed.",
   "originId": "avinor-nrk-2025-09-23",
   "quote": "The airport’s airspace was closed for several hours after drones were detected nearby, Avinor, Norway’s air operator, told NRK on Tuesday.",
   "quoteCheckedAt": "2026-10-12",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 1,
   "statement": "Avinor said the airport's airspace was closed for several hours after drones were detected nearby."
  },
  {
   "assessment": "supports",
   "axis": "drone",
   "claimant": "Oslo Airport director",
   "id": "drone-luminous",
   "note": "A visual sighting by airport patrols, not a technical detection; the objects were not identified.",
   "originId": "oslo-airport-director-2025-09-23",
   "quote": "said patrols spotted “luminous objects moving in the sky.”",
   "quoteCheckedAt": "2026-10-12",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 0,
   "statement": "The airport director said patrols spotted luminous objects moving in the sky."
  },
  {
   "assessment": "contradicts",
   "axis": "drone",
   "claimant": "Dagbladet",
   "id": "drone-unknown",
   "note": "The quote is in Norwegian, in the original wording, and was published on 10 October 2025. It undermines treating the sighting as a confirmed drone.",
   "originId": "dagbladet-2025-10-10",
   "quote": "Det er fortsatt ikke offentlig kjent om det ble observert droner eller ei.",
   "quoteCheckedAt": "2026-10-12",
   "quoteTranslation": {},
   "relay": "direct",
   "sourceIndex": 2,
   "statement": "Dagbladet reported that it is still not publicly known whether drones were observed over Gardermoen."
  },
  {
   "assessment": "context",
   "axis": "context",
   "claimant": "Avinor, as reported by Dagbladet",
   "id": "drone-system-down",
   "note": "Second-hand report of an Avinor statement to Filter Nyheter, in Norwegian. The cause of the system outage is unknown.",
   "originId": "avinor-filter-nyheter-2025",
   "quote": "Avinor bekrefter imidlertid overfor Filter Nyheter at deres system var nede da de mulige droneobservasjonene ble gjort, og at det medvirket til stengingen av luftrommet.",
   "quoteCheckedAt": "2026-10-12",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 2,
   "statement": "Avinor confirmed to another outlet that its detection system was down when the possible observations were made and that this contributed to the closure."
  },
  {
   "assessment": "context",
   "axis": "attribution",
   "claimant": "Russian government",
   "id": "attr-russia-denial",
   "note": "Covers both airports; the cited sources name no party for the Oslo reports.",
   "originId": "russia-denial-2025-09-23",
   "quote": "Russia has denied involvement in the drone activity that shut Copenhagen and Oslo airports",
   "quoteCheckedAt": "2026-10-12",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 0,
   "statement": "Russia has denied involvement in the drone activity that shut the Copenhagen and Oslo airports."
  },
  {
   "assessment": "supports",
   "axis": "impact",
   "claimant": "Avinor",
   "id": "audit-b2-impact-20261020",
   "note": "EBU relays the airport operator; closure is confirmed independently of whether the sighted object was a drone.",
   "originId": "avinor-oslo-20250923",
   "quote": "Norwegian airport operator Avinor reported that Oslo’s airspace, which had been closed from midnight (2200 GMT)",
   "quoteCheckedAt": "2026-10-20",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 0,
   "statement": "Avinor reports that Oslo Airport airspace had been closed from midnight."
  },
  {
   "assessment": "supports",
   "axis": "context",
   "claimant": "Police email to Dronemagasinet",
   "id": "police-unresolved-observation",
   "note": "Read against the saved source version. Source production and shared original records are distinguished in the evidence section.",
   "originId": "oslo-police-email-20250926",
   "quote": "Så langt er det ikke kommet informasjon som styrker hypotesen om at det var droner som ble observert.",
   "quoteCheckedAt": "2026-10-27",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 5,
   "statement": "Police said the investigation had not strengthened the drone hypothesis."
  },
  {
   "assessment": "supports",
   "axis": "context",
   "claimant": "Police statement via VG and The Local",
   "id": "police-investigation-shelved",
   "note": "Read against the saved source version. Source production and shared original records are distinguished in the evidence section.",
   "originId": "oslo-police-closure-20251107",
   "quote": "The case has therefore been shelved due to lack of evidence.",
   "quoteCheckedAt": "2026-10-27",
   "quoteTranslation": {},
   "relay": "relayed",
   "sourceIndex": 6,
   "statement": "The later police investigation was shelved for lack of evidence."
  },
  {
   "assessment": "supports",
   "axis": "context",
   "claimant": "Avinor",
   "id": "avinor-outage-confirmed",
   "note": "Read against the saved source version. Source production and shared original records are distinguished in the evidence section.",
   "originId": "avinor-system-statement-20251012",
   "quote": "Avinor bekrefter at vi har hatt perioder med nedetid på dronedeteksjonssystemet, blant annet under hendelsen 22. september.",
   "quoteCheckedAt": "2026-10-27",
   "quoteTranslation": {},
   "relay": "direct",
   "sourceIndex": 4,
   "statement": "Avinor confirmed detection-system downtime during the relevant incident."
  }
 ],
 "corroboration": "curated",
 "country": "Norway",
 "countryCode": "NO",
 "date": "2025-09-22",
 "dateKind": "event",
 "droneStatus": "inconclusive",
 "droneStatusSources": [
  0,
  1,
  2
 ],
 "droneTypes": [],
 "evidence": "Dronemagasinet obtained a direct police email on 26 September saying the investigation had not strengthened the drone hypothesis and that the original observation was visual. Avinor’s own later statement confirms that its detection system had been down during the relevant period. Those are distinct police and airport-operator origins. The Local subsequently relayed VG’s report of a police statement: interviews, camera review and further witness inquiries had not confirmed whether the objects were drones. That relay is follow-up reporting on the same police case, not a separate technical investigation. Avinor’s statement establishes the system problem, not the identity of the observed objects.",
 "followUp": [],
 "id": "oslo-gardermoen-closure-2025-09-22",
 "impact": "Norway's airport operator Avinor said the airspace was closed for several hours and several flights were diverted, including one that was rerouted to Copenhagen. The closure came on the same night as the drone-related closure of Copenhagen Airport.",
 "impactStatus": "confirmed",
 "impactStatusSources": [
  0,
  1
 ],
 "lat": 60.19,
 "locationPrecision": "city",
 "lon": 11.1,
 "media": [],
 "namedLocation": null,
 "operationalEffects": [],
 "outcome": [],
 "place": "Oslo Airport, Gardermoen",
 "plainSummary": {},
 "publisherMedia": [],
 "reportTiming": null,
 "review": "editor",
 "revision": 6,
 "scope": "single",
 "series": [],
 "sources": [
  {
   "family": "avinor",
   "label": "European Broadcasting Union Spotlight: How Drones Shut Down Copenhagen/Oslo Airports",
   "published": "2025-09-23",
   "url": "https://spotlight.ebu.ch/p/drone-sightings-close-copenhagen"
  },
  {
   "family": "avinor",
   "label": "Kyiv Post: Drone Sightings Force Flight Suspensions at Copenhagen, Oslo Airports",
   "published": "2025-09-23",
   "url": "https://www.kyivpost.com/amp/post/60650"
  },
  {
   "family": "dagbladet",
   "label": "Dagbladet: Dronesystem var nede (drone detection system was down)",
   "published": "2025-10-10",
   "url": "https://www.dagbladet.no/nyheter/dronesystem-var-nede/83630989"
  },
  {
   "family": "reuters",
   "label": "Reuters — official YouTube report",
   "published": "2025-09-23",
   "publishedAt": "2025-09-23T01:06:48-07:00",
   "url": "https://www.youtube.com/watch?v=MWRY4jNS3Ag"
  },
  {
   "family": "avinor",
   "label": "Avinor: facts about drone detection at its airports, 12 October 2025",
   "published": "2025-10-12",
   "publishedAt": "2025-10-12T20:00:00+02:00",
   "url": "https://kommunikasjon.ntb.no/pressemelding/18681461/fakta-om-dronedeteksjon-ved-avinors-lufthavner?lang=no&publisherId=17421123"
  },
  {
   "family": "dronemagasinet",
   "label": "Dronemagasinet: direct police email on the unresolved observation",
   "published": "2025-09-26",
   "url": "https://www.dronemag.no/mistanken-om-drone-ved-gardermoen-er-ikke-styrket/"
  },
  {
   "family": "the-local",
   "label": "The Local: VG relay of police decision to shelve investigation",
   "published": "2025-11-07",
   "url": "https://www.thelocal.no/20251107/norwegian-police-shelve-investigation-of-oslo-airport-drones"
  }
 ],
 "summary": "Oslo Airport closed its airspace overnight on 22–23 September 2025 after possible drone observations, diverting flights before reopening. A subsequent police investigation did not establish that the observed objects were drones. Reporting on 7 November 2025 said the investigation had been shelved for lack of evidence. The closure is established; drone identification remains unresolved.",
 "timeline": [
  {
   "date": "2025-09-22",
   "source": 0,
   "text": "Airport patrols reported luminous objects in the sky; traffic was redirected to another runway, then further sightings led to a full closure of the airspace around midnight."
  },
  {
   "date": "2025-09-23",
   "source": 0,
   "text": "Avinor reopened the airspace by about 03:22 local time."
  },
  {
   "date": "2025-09-23",
   "source": 1,
   "text": "Police in Oslo said they had detained two people overnight in connection with unauthorised drone flights in the city centre; a police attorney said the case appears unrelated to the airport incidents."
  },
  {
   "date": "2025-09-26",
   "source": 5,
   "text": "Police tell Dronemagasinet that the investigation has not strengthened the hypothesis that the observed objects were drones."
  },
  {
   "date": "2025-10-10",
   "source": 2,
   "text": "Dagbladet reported that a drone detection system was down at the time and that it is still not publicly known whether drones were observed."
  },
  {
   "date": "2025-11-07",
   "source": 6,
   "text": "The Local relays a police statement via VG: the investigation is shelved because drone identification could not be established."
  }
 ],
 "title": "Oslo Airport closed for hours after reported drone sightings; later reporting says a detection system was down",
 "unknown": "Ending an investigation for insufficient evidence is not proof that no drone was present, and a system outage does not establish sabotage or foreign involvement. A separate drone case near Maura later that week must not be merged with the airport’s overnight closure. The November investigative decision is a follow-up date, not a fresh drone event. Private identities, sensitive system details and precise flight positions are omitted.",
 "updatedAt": "2026-10-27",
 "windowBasis": null,
 "windowEnd": null,
 "windowStart": null
}