Officers were seen rappelling down the front of the EDF building to take down a big protest banner and lower down militants perched on the rooftop.
Activists protesting the pro-nuclear policy of EDF had handcuffed themselves to heavy yellow barrels and lined up along the main entrance of the building beginning early Wednesday. At least two other militants had locked themselves inside a huge container placed on the forecourt.
Activists were taken away in police vans. EDF said in a statement it will file a complaint against Greenpeace over the disruption that lasted some six hours.
Greenpeace was protesting what they claim is EDF's inability to maintain the safety of France's nuclear plants while sitting on a debt of dozens of billion euros and keeping on investing in nuclear energy.
Cyrille Cormier, a Greenpeace official taking part in the demonstration, told The Associated Press that "30 out of 58 EDF nuclear reactors have serious anomalies in tanks or steam generators."
EDF denounced as false the statements made by Greenpeace during its protest.