The offer was made by the Iranian foreign minister, Mohammad Javad Zarif, on a visit to New York. But it is unlikely to be warmly received by the Trump administration, which is currently demanding Iran make a range of sweeping concessions, including cessation of uranium enrichment and support for proxies and allies in the region.
Zarif insisted, however, that his offer was “a substantial move”.
“It’s not about photo ops. We are interested in substance,” he told reporters at the Iranian mission to the UN in New York on Thursday. “There are other substantial moves that can be made.”