French Interior Minister Manuel Valls called for authorities to examine factors behind the break-in, described by one organizer as an effort to shed light on the Tricastin plant's defensive shortcomings. Most of the intruders were in custody as of Monday morning.
The French nuclear safety organization ASN said the intrusion had "so far" not had "any impact on the facility's safety."
This article was published in Global Security Newswire, which is produced independently by National Journal Group under contract with the Nuclear Threat Initiative. NTI is a nonprofit, nonpartisan group working to reduce global threats from nuclear, biological, and chemical weapons.