Peace talks between the United States and Iran, aimed at securing a lasting settlement, ended without any agreement after running for more than 21 hours in Islamabad, Pakistan.

The discussions followed a two-week ceasefire that both countries accepted after a conflict that began on February 28, involving the US and Israel against Iran, according to the report.

The US delegation was led by Vice President J.D. Vance, while Iran was represented by a team headed by Parliament Speaker Mohammad Bagher Ghalibaf. Talks continued into Friday morning but concluded without a breakthrough.

US negotiators sought an assurance that Iran would not produce nuclear weapons in the future and would not use tools or technologies that could speed up such development. Iran declined to accept those conditions.

Iran, in turn, sought authority related to uranium enrichment for nuclear energy and control over the Strait of Hormuz, which the US opposed. An Iranian foreign affairs official blamed “excessive demands” by Washington, while noting that no one expected a deal in a single meeting. Pakistan has invited a next round, but neither side has agreed so far.