Image Credentials: Image Title: Denmark Reports Surge in Drone Sightings as NATO Boosts Baltic Sea Vigilance Source: (Sora.ChatGpt) Date: September 2025. Attribution: Created using AI-generated imagery (Sora.ChatGpt), this does not depict a real-world scene.
By Liam Scott | Staff Writer with Agencies
COPENHAGEN — Denmark’s Defense Ministry said on Sunday that it had again detected drones at several armed forces locations overnight, a day after NATO pledged to step up its surveillance efforts in the Baltic Sea region.
In a brief statement, the ministry said it had “several capacities deployed” following sightings from Saturday into Sunday night. No details were given on the number of drones, their locations, or the type of deployments now in place.
The latest incidents follow a spate of unexplained drone activity across Denmark, including over five airports last week, raising fresh concerns about security in northern Europe amid suspected growing Russian aggression.
Following a NATO meeting in Riga, Latvia, on Saturday, Colonel Martin O’Donnell, spokesperson for Supreme Headquarters Allied Powers Europe, announced that the alliance would “conduct even more enhanced vigilance with new multi-domain assets in the Baltic Sea region, which includes Denmark, under Baltic Sentry.” O’Donnell added that NATO leaders remain in close contact with Danish officials regarding the drone sightings.
As Denmark prepares to host the upcoming European Union summit in Copenhagen, the Danish Transportation Ministry said on Sunday that “all civilian drone flying in Danish airspace will be prohibited” from Monday to Friday to “remove the risk that enemy drones can be confused with legal drones and vice versa.”
Tensions have been running high in Denmark after hundreds of possible drone sightings were reported by concerned citizens, though not all have been confirmed. Authorities have urged the public to continue reporting suspicious activity to the police.
Justice Minister Peter Hummelgaard said on September 25 that the aim of the flyovers appears to be to sow fear and division. He added that Denmark is exploring additional measures to neutralize drones, including proposed legislation that would allow infrastructure owners to shoot them down.
While Danish officials have not identified the actors behind the drone activity, both Prime Minister Mette Frederiksen and NATO Secretary-General Jens Stoltenberg said last week that Russian involvement cannot be ruled out. The Russian Embassy in Copenhagen has rejected allegations of Moscow’s involvement.
The heightened alert in Denmark comes as Ukraine reported over the weekend that Russia launched a major drone-and-missile barrage that killed at least four people, including a 12-year-old girl. Ukraine’s air force said Russia fired 595 exploding drones and decoys along with 48 missiles, of which 566 drones and 45 missiles were intercepted or jammed. This marked the first major bombardment since an air attack on Kyiv last month left at least 21 people dead.
Timeline of Drone Sightings in Denmark
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Mid-September 2025 — First reports of drones over Danish military installations emerge, prompting initial security reviews.
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Last week, Unexplained drone activity was detected over five major Danish airports, raising national security concerns.
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September 25 — Justice Minister Peter Hummelgaard publicly states the flyovers appear to be aimed at sowing fear and division, announcing legislative plans to allow neutralization of drones.
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Saturday, September 27 — NATO meeting in Riga announces “Baltic Sentry” to enhance multi-domain surveillance in the Baltic Sea region, including Denmark.
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Sunday, September 28 — Danish Defense Ministry confirms new drone sightings at several armed forces locations overnight and deploys additional capacities.
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Monday, September 29 (planned) — Denmark to enforce a nationwide ban on civilian drone flights until Friday during the EU summit in Copenhagen to prevent confusion with hostile drones.