North Korea accused South Korea of flying surveillance drones across their border this week, claiming to have shot one down on January 4 and another in September. Pyongyang warned of consequences for these alleged incursions. South Korea has denied the accusations, stating it did not operate drones on the dates cited and has launched an investigation. Experts suggest the timing of North Korea's claims, ahead of a party congress, may be politically motivated, and the drone evidence presented is questionable.