Copenhagen Drones Halt Flights; Sabotage Probe

A pair of large unidentified drones flew over Copenhagen Airport late Monday, forcing a near-four-hour shutdown of takeoffs and landings and causing diversions, cancellations and ongoing delays as operations resumed. Danish police said two to three craft, larger than consumer models, were flown in varied patterns and described the pilot as a "capable operator," and officials said they refused to shoot the drones down because of risk to passengers and fuel depots. Prime Minister Mette Frederiksen called the episode "the most serious attack on Danish critical infrastructure to date," and Danish intelligence warned of a heightened sabotage threat. Investigators are probing how the drones reached the airport — including whether by land or boat — and whether the Copenhagen sightings are linked to a related incident at Oslo Airport; Norwegian authorities detained two foreign nationals in connection with nearby drone flights. Authorities have not ruled out a possible Russian hybrid-attack angle, which Moscow denies, and inquiries into the broader travel impacts and security gaps are ongoing.