Thus far, the media has reported that the UFOs are likely drones. However, currently, months after the sightings began, the French government still doesn't know who they belong to. Now a director of one of those nuclear power plants in France says whatever flew over his plant in October, 2014, was not a drone. It was a UFO.
According to Austrian news site ORF.at, there were 18 separate occasions UFOs were seen flying over nuclear power plants in France between early October and early November. The latest incident was announced on January 3, 2015. A nuclear power plant in Nogent-sur-Seine, southeast of Paris, reported that two security guards saw "two flying objects."
The media has reported that some authorities suspect the objects are drones flown by anti-nuclear activists to demonstrate that the plants are open to terrorist attacks via drones. However, authorities have not been able to track them. The largest anti-nuclear organizations have also denied any involvement.
