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By the Associated Press

OBBUERGEN, Switzerland (AP) — Negotiators from the US and Iran were set to engage in a second day of talks Monday to solidify a permanent end to the war between the countries, after a first day of mediation began with a rocky start.

Mediators Qatar and Pakistan hailed what they called “encouraging progress” made during the talks. A senior US diplomat claimed progress on multiple fronts, including the establishment of “mechanisms” to ensure the Strait of Hormuz, a vital waterway for global energy shipments, remains open and that a ceasefire in southern Lebanon holds.

Yet the first full day of talks between the U.S. and Iran, who were accompanied by Qatari and Pakistani officials, was jolted by blistering statements from U.S. President Donald Trump, who from thousands of miles away from the Swiss negotiating venue was firing off comments that offended the Iranians.

Iranian state media said talks had paused after the “publication of an insulting message by the U.S. President.” The Iranian delegation then met with Qatari mediators and left the negotiating site, state media said. The senior US diplomat, who spoke on condition of anonymity to brief journalists on the ongoing talks, said late Sunday that the Iranians remained on site and the negotiations were on.

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Iranian President Masoud Pezeshkian had vowed to “never back down from the right to enrich uranium,” according to state media, and Trump later told Fox News in a phone interview that Pezeshkian should watch what he says and also threatened to take over Iran, according to one of the news channel’s correspondents.

Trump also continued to issue warnings against Iran on social media, posting as negotiators worked: “Iran must immediately stop their highly paid PROXIES in Lebanon from causing trouble. If they don’t, we’ll hit Iran very hard again, just like we did last week, only harder!!!”

The chief negotiators for the U.S. include JD Vance, the vice president; special envoy Steve Witkoff, and Jared Kushner, the son-in-law of the president. Iran is represented by Mohammad Bagher Qalibaf, Iran’s parliamentary speaker, and Foreign Minister Abbas Araghchi.

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