US Vice President JD Vance said Monday that negotiations with Iran at the Burgenstock resort in Switzerland had made significant progress, adding that the parties had laid a “very good foundation” for reaching a final agreement, Anadolu reports.

“Yesterday was a very, very good day. We made a lot of good progress,” Vance told reporters after talks involving US and Iranian officials, alongside mediators from Qatar and Pakistan.

He said the discussions achieved several key objectives, including establishing mechanisms to keep the Strait of Hormuz open and a deconfliction mechanism between Israel and Lebanon. The arrangement is intended to ensure that “when things happen, the sides are actually talking to one another,” and to prevent tensions from spiraling into a broader regional escalation, he said.

Vance also announced what he described as a major breakthrough in the nuclear file.

“The Iranians have agreed to invite IAEA (International Atomic Energy Agency) inspectors back into their country. That is a major milestone for the American people, and the first step in permanently denuclearizing or permanently ending a nuclear weapons program in Iran,” he said.