Unidentified drones reappear over Paris at night Unidentified drones flew over Paris for a second night in a row, police said Wednesday, in the latest mystery appearance of unmanned aircraft over the French capital at a time of high security. The sightings follow a series of drone spottings at French atomic plants last year and, more recently over the presidential palace and a bay in Brittany that houses nuclear submarines. FILE IMAGES OF THE NUCLEAR PLANTS