In the latest round of negotiations between the Trump administration and Iran, the US is pushing for zero nuclear enrichment on Iranian soil. But a Senior Iranian official tells CNN’s Fred Pleitgen Iran is “disappointed” with nuclear talks.

Iran has multiple major sites associated with its rapidly advancing nuclear program, now the subject of several rounds of negotiations with the United States

Iran's top diplomat warned Thursday that his country would take “special measures in defense of our nuclear facilities” if Israel continues to threaten Tehran's atomic sites, raising the stakes further ahead of a new round of talks with the United States.

Iran is moving ahead according to its national interests without being told what to do by outsiders, Head of the Atomic Energy Organization of Iran (AEOI) Mohammad Eslami stressed.