Iran's Rouhani announces another step away from 2015 nuclear deal

"This announcement will be taken very seriously by the European Union, Russia and China, because of the sensitivity of Fordow and what it entails," Aniseh Bassiri Tabrizi, a fellow at Royal United Services Institute, told Al Jazeera. "So we will have to see if Iran went too far in trying to push the remaining parties or if the JCPOA stays alive or not," she added, referring to the deal's formal title.