Source : BBC
See video https://www.bbc.com/news/world-europe-29844962
Who is flying the mystery drones over France's nuclear sites ?
31 October 2014 Last updated at 06:47 GMT
Unmanned aircraft have been seen flying over many of France's nuclear stations and the authorities don't know where they have come from.
Greenpeace, who have previously flown a paraglider over a nuclear plant in France, deny any involvement.
An investigation has been launched, (...)