High-level US-Iran discussions on an interim agreement to end the war are taking place amid uncertainty after plans for a scheduled meeting in Switzerland are delayed or scrapped. Multiple outlets report that Vice President JD Vance’s trip to Switzerland for technical talks with Iranian negotiators was postponed or canceled, with the White House citing unresolved logistics and stating the US delegation remains ready to depart when possible. Reports also indicate preparations had been underway for talks at the Swiss mountaintop resort of Buergenstock.

The disruption comes as fighting in the region escalates, including renewed Israel-Hezbollah exchanges in Lebanon, which some reports link to added complexity for timing and negotiations. The interim memorandum signed this week by the US and Iranian presidents sets a 60-day window to reach a more lasting agreement or extend the existing interim deal, while some contentious issues—including Iran’s nuclear programme—are deferred for later talks.

While earlier reporting described Vance’s travel and the prospect of talks in Switzerland, later updates describe abrupt changes to the schedule, leaving the exact timing of the next US-Iran meeting unclear.