Drones fly over nuclear power plants - level 3
France has launched an investigation after mysterious drones were spotted flying over some of the country's nuclear power stations.
EDF, the state-owned utility company which operates the nuclear plants, said the unidentified drones flew over seven power stations between October 5th and 20th.
The energy firm said the drones did not have an impact on the nuclear stations’ safety or function, but the Interior Ministry has now launched an investigation into the matter.
The drone sightings may renew concerns about the safety of nuclear plants in France, which is the world's most nuclear-reliant country with 58 reactors and 19 sites operated by EDF.
Drones are prohibited to fly less than 1,000 metres above nuclear plants and within a five kilometre radius in France.
Difficult words: mysterious (people know very little about them), spot (see), utility company (a big company which provides a country with utilities like electricity, gas, water etc.), impact (effect), launch (start), renew (start again), prohibit (not allowed).
How to improve your English with News in Levels: