Iran's president arrived in Pakistan for talks Tuesday with officials mediating negotiations between Tehran and Washington on a permanent end to the war in the Middle East, even as discrepancies emerged on what had been agreed so far and violence broke out again in Lebanon.

President Masoud Pezeshkian's visit to Islamabad comes as technical teams were working on details of the deal following high-level negotiations in Switzerland Monday led by US Vice President JD Vance and Iran's parliamentary speaker, Mohammad Bagher Qalibaf.

In Tehran, Iran's capital, Foreign Ministry spokesperson Esmail Baghaei told reporters that no visits were scheduled for the U.N. watchdog — the International Atomic Energy Agency — to examine Iranian nuclear sites bombed by the United States last year. Vance previously said the negotiations in Switzerland won an agreement for the inspectors to visit the sites.

The IAEA has been in and out of Iran since Israel's 12-day war in 2025, but has not been granted access to the bombed enrichment sites targeted by the US at the time.

Meanwhile, violence flared again in southern Lebanon as Israeli soldiers opened fire, killing two people. The reports of violence came after two days of calm following a ceasefire brokered on Saturday. Any renewal of heavy fighting could threaten the broader diplomatic talks, since Iran has demanded that a full truce in Lebanon be part of any comprehensive deal.