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Five drones overfly French submarine base at Île Longue

Incident Report

Fact Sheet
Date4 Dec 2025
TrackerEuropean Airspace Violations
TypeIncursion
Location Île Longue, Finistère, France
48.40, -4.45 (approximate)
What Happened

Five unidentified drones overflew the French naval base at Île Longue in Finistère, Brittany, home port of France's four ballistic missile submarines and the most sensitive military site in the country. Naval personnel were reported to have opened fire. Defence minister Catherine Vautrin confirmed the drones had been "intercepted" by personnel at the base without specifying whether that meant shot down, jammed or otherwise neutralised. No attribution was established.

Île Longue, Finistère, France
Île Longue, Finistère, France
Marker placed at region precision.

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