Danish police investigate mystery drone sightings over Køge
*Event date: 2025-01-04*
Danish police are investigating the reported sighting of about 20 drones over the port city of Køge, southwest of Copenhagen, after eyewitness reports and police observations prompted them to alert Denmark’s PET domestic intelligence service.
DW reported that police were called to the marina in Køge on Friday night after a witness reported the drones. Officers later spotted four of them before the devices disappeared over the sea. At the time, authorities said it was unclear where the drones came from, why they were there or who launched them. No permits had been issued for drone flights in the area.
The immediate facts were limited, but the context gave the incident broader significance. The report linked the episode to heightened concern across Nordic and Baltic states about possible Russian hybrid attacks, especially after damage to several undersea cables. That concern has made even unclear aerial incidents politically sensitive.
DW also noted that unidentified drones have been seen over power stations and airports in Scandinavia in recent years without authorities identifying who launched them. The Køge case therefore fits a pattern of unexplained drone activity that has repeatedly alarmed security services in the region.
The story sits in a wider Baltic security environment. The report points to recent incidents involving undersea cables, including damage to the Estlink 2 power cable linking Finland and Estonia. Finnish authorities believed that could have been sabotage and detained the Cook Islands-flagged tanker Eagle S, which the EU associates with Russia’s so-called shadow fleet. Another incident in November involved two severed fibre-optic cables and a Chinese ship boarded by Swedish authorities.
While those events are not proof that the Køge drones were linked to sabotage, they explain why the report drew immediate attention. In the current climate, unexplained drones near maritime infrastructure are not treated as isolated curiosities. They are read through the lens of hybrid warfare, infrastructure vulnerability and regional deterrence.
DW said officers in Køge saw four drones before they vanished, which suggests the incident was both brief and difficult to contain. That brevity can be part of the problem. When drones appear and disappear quickly, it becomes harder to identify operators, collect evidence or determine intent.
The comparison with recent drone incidents elsewhere in Europe and the United States underlines how widespread the concern has become. But the Danish case remains unresolved. Officials have not said the drones were hostile, who owned them or whether they had any connection to military, commercial or recreational use.
For now, the investigation is a reminder that low-cost aerial technology has become a security headache for states trying to defend ports, cables and other critical assets. In Denmark, that concern has now reached a quiet marina on the edge of the Baltic Sea.
