Per Woofun AI, diplomatic engagements between the United States and Iran in Switzerland commenced at 3:00 p.m. local time on June 21st but were suspended after approximately 90 minutes. The Iranian delegation declined to reconvene following a 30-minute recess, attributing the impasse to threatening rhetoric from Donald Trump.

Meanwhile, Qatar and Pakistan continue to facilitate backchannel communications, though no resolution has been secured. Tehran strongly protested alleged US violations of the Memorandum of Understanding, specifically the first provision. The Iranian side insisted that the US must expedite asset unfreezing and issue oil export sanctions waivers, asserting that compliance with Articles 1, 4, 10, and 11 is a strict prerequisite for any nuclear dialogue.