An outline by the Trump administration would allow Iran to continue enriching uranium at low levels while a broader arrangement is worked out that would block the country’s path to a nuclear weapon.

Iran's stance directly clashes with U.S. President Donald Trump 's position that Iran must halt all enrichment amid negotiations marked by uncertainty, despite having reached their most significant step since they began in April with a U.S. offer being delivered to Tehran last week.

Iran is poised to reject a new US nuclear proposal, calling it one-sided and lacking clarity on sanctions relief or uranium enrichment rights, an Iranian diplomat said, dismissing it as a "non-starter.