France lamented on Tuesday a U.S. decision to end a sanctions waiver related to Iran’s Fordow nuclear facility, but also said it feared Tehran’s latest violations of a 2015 deal could lead to serious nuclear proliferation. “We regret the decision of the United States, following Iran’s resumption of enrichment on the Fordow site, to terminate an exemption that would facilitate the conduct of civilian projects on this site,” foreign ministry spokeswoman Agnes von der Muhll told reporters in an online briefing. The Trump administration, which last year pulled out of the Iran nuclear deal and re-imposed sanctions on Tehran, had until Monday let the work go forward at the Fordow fuel enrichment plant by issuing waivers to sanctions that bar non-U.S. firms from dealing with the Atomic Energy Organization of Iran (AEOI).