On 4 December 2025, four unidentified military-style drones entered a no-fly zone over Dublin and its surrounding area, targeting the arrival of Ukrainian President Volodymyr Zelenskyy. The drones were believed to have originated from near a naval vessel close to Dublin, though the launch location and controllers remain unknown. Military-grade drones capable of multiple functions and equipped with lights on their undersides were detected. Garda Commissioner Helen Kelly confirmed the incident and stated that Garda and Defence forces responded promptly. Similar drone incursions have been reported recently at airports in Brussels and Denmark, suggesting a pattern of hybrid warfare tactics. Although drones were sighted close to the Irish naval vessel William Butler Yeats, no shots were fired to bring them down due to legal and safety concerns. The Irish Aviation Authority had issued a no-fly zone for the duration of President Zelenskyy's visit. The incident raised security concerns about hybrid threat tactics combining espionage and sabotage, highlighting vulnerabilities to non-traditional attacks in Ireland. Statements from the Irish Defence Forces and Department of Defence declined to comment further, while the Defence Forces emphasized their readiness and cooperation with other EU partners amid these incidents.

On 4 December 2025, four unidentified military-style drones entered a no-fly zone over Dublin and its surrounding area, targeting the arrival of Ukrainian President Volodymyr Zelenskyy. The drones were believed to have originated from near a naval vessel close to Dublin, though the launch location and controllers remain unknown. Military-grade drones capable of multiple functions and equipped with lights on their undersides were detected. Garda Commissioner Helen Kelly confirmed the incident and stated that Garda and Defence forces responded promptly. Similar drone incursions have been reported recently at airports in Brussels and Denmark, suggesting a pattern of hybrid warfare tactics. Although drones were sighted close to the Irish naval vessel William Butler Yeats, no shots were fired to bring them down due to legal and safety concerns. The Irish Aviation Authority had issued a no-fly zone for the duration of President Zelenskyy's visit. The incident raised security concerns about hybrid threat tactics combining espionage and sabotage, highlighting vulnerabilities to non-traditional attacks in Ireland. Statements from the Irish Defence Forces and Department of Defence declined to comment further, while the Defence Forces emphasized their readiness and cooperation with other EU partners amid these incidents.