Denmark has connected a recent drone incident over Copenhagen Airport to a series of similar incursions across Europe, which have been attributed to Russia. On Monday, drones flew over the airport for several hours, causing significant disruptions to flights. This incident is considered the most serious attack on Denmark's critical infrastructure to date.

Danish Prime Minister Mette Frederiksen stated that the drone activity appeared to be intended "to disrupt and create unrest." However, authorities have not named any suspects. The sighting of two or three large drones near the airport led to a halt in all take-offs and landings for nearly four hours. In a related incident, Norway closed its airspace at Oslo Airport for three hours after a drone was spotted, leaving tens of thousands of passengers stranded at the busiest airports in the Nordic region.

Frederiksen emphasized the severity of the situation, saying, "What we saw last night is the most serious attack on Danish critical infrastructure to date." She added that the government is not ruling out any possibilities regarding the perpetrators. The Prime Minister noted that this incident aligns with recent developments, including other drone attacks, airspace violations, and hacker attacks targeting European airports.

In her comments to public broadcaster DR, Frederiksen referenced recent suspected Russian drone incursions into Polish and Romanian airspace, as well as reports of Russian fighter jets entering Estonia's airspace. "I certainly cannot deny in any way that it is Russia," she stated.

Danish police have not commented on a post by Ukraine's President Volodymyr Zelenskyy, who suggested that Russia was behind the airspace violation in Copenhagen. In response, Russia's ambassador to Denmark, Vladimir Barbin, dismissed the allegations as unfounded. He claimed that the incident was an attempt to provoke NATO countries into a direct military confrontation with Russia.

Western security agencies have noted an increase in hybrid threats, particularly from Russia, which include physical sabotage of critical infrastructure, disinformation campaigns, espionage, and cyber attacks. Moscow has consistently denied any involvement in hybrid attacks in Europe.

Danish police reported that the drones appeared to come from different directions, turning their lights on and off before disappearing after several hours. Chief Superintendent Jens Jespersen stated that authorities are exploring several hypotheses, including the possibility that the drones were launched from ships. Copenhagen's main airport is situated near a busy shipping lane that connects to the Baltic Sea. On Tuesday morning, a Royal Danish Navy ship was patrolling the waters adjacent to Copenhagen.