24 February 2015
Last updated at 08:54
The Eiffel Tower was among several landmarks buzzed by drones in the French capital
Drones have been seen flying over several sensitive landmarks in Paris in a night-time mystery that French police say is being taken seriously.
At least five of the unmanned aerial machines were spotted between midnight on Monday and 0600 on Tuesday, and none of the operators has been caught.
The first appeared over the US embassy and there were later sightings near the Eiffel Tower and Place de la Concorde.
French police believe the drone flights could be linked.
Small drones are easy to buy but their appearance in recent months over sensitive locations has worried French authorities.
Last month a drone was seen over the Elysee Palace, home of President Francois Hollande, and in October a series of nuclear plants was targeted across the country.
An inquiry has begun into the drone flight over the US embassy, a short distance from Place de la Concorde. The Invalides military museum and Bastille were also buzzed, reports said.
“We did all we could to try to catch the operators but they weren’t found,” a police source told AFP news agency.
Drones are capable of providing high-quality aerial film and what is not clear is whether they were being used maliciously or simply by enthusiasts.
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