The IAEA reported that Iran had started bringing online an additional cascade of IR-6 centrifuges at Fordow, adding: “The Agency has yet to receive clarification from Iran as to which mode of production it intends to implement for the aforementioned cascade”. The following day, a U.S. diplomatic spokesperson indicated that “we are deeply concerned by the current state of Iran’s nuclear program. It’s precisely why we want to see those strict [JCPOA] limits, that verification and monitoring regime reimposed on Iran”.