US briefing says Iran would pledge never to develop nuclear weapons

In a briefing to Reuters, a senior US official said the emerging agreement includes a commitment by Iran that it would never develop nuclear weapons. The official added that the United States would still need to determine how to enforce that pledge.

The official also said Iran's Supreme Leader, Mojtaba Khamenei, is comfortable with the current state of the negotiations. No additional details about the talks, timing, or terms were provided in the report.