In an early morning statement, the ministry confirmed that the meeting would no longer proceed as planned but did not provide any reasons for the cancellation. The sudden development has been described as unusual by diplomatic observers.

The White House also confirmed that US Vice President JD Vance would not travel to Switzerland for the expected preliminary technical discussions with Iranian officials. US officials said logistical and administrative arrangements for the talks were not fully finalized, leading to the postponement of the visit.

The meeting had been seen as an important step in ongoing diplomatic efforts between Washington and Tehran, aimed at reducing regional tensions and opening channels for broader negotiations. Its cancellation has now raised questions about the immediate future of the dialogue process.

Despite the setback, sources suggest that both sides have not completely ended contact and may agree on a new schedule for talks at a later stage.

Officials have not yet announced a revised date, but diplomatic channels between the two countries are expected to remain active in some form as efforts continue to manage tensions.