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.

White House press secretary Karoline Leavitt revealed that a "detailed and acceptable" proposal was sent to Iran by Steve Witkoff.

The Iranian Foreign Minister says he has spoken by phone with the director of the U.N.’s nuclear watchdog agency after a report from the agency said Iran is further increasing its stockpile of uranium