Iran has agreed to allow inspectors from the UN's nuclear watchdog to return to the country, a development that marks a tangible step forward in stalled diplomatic efforts.
US Vice President JD Vance confirmed the agreement on Monday, following high-level talks in Burgstock, Switzerland.
The move signals a potential de-escalation in tensions that have weighed on regional stability and global energy supply chains for months.
Vance described the outcome as establishing a "very good foundation" for a final agreement, suggesting that the immediate crisis mode may be easing.
The return of International Atomic Energy Agency (IAEA) inspectors is a critical confidence-building measure, providing the international community with verified access to Iran's nuclear facilities.
This development contrasts with recent reports of stagnation in converting preliminary understandings into permanent deals.