Paris police say they have spotted at least five drones flying over the French capital overnight, and an investigation is under way into who was flying them and why.
BFM TV reported they were seen flying over the Eiffel tower, the Louvre museum and the US embassy, among other locations.
A Paris police official confirmed the presence of the drones in city airspace but would not provide other details. The national gendarme service said an investigation had been launched.
In recent months France has seen dozens of mystery drones flying over nuclear plants and military installations. One flew over the presidential palace.