US Vice President JD Vance says negotiators "made a lot of good progress" in peace talks with Iran, saying that they had laid "a very good foundation" for a final agreement.

He told reporters that the Iranian delegation "threatened to walk out" of negotiations, or “at least there were social media threats that they would walk out”.

He said that there was “a little bit of threatening” and “whining but at the end of the day, the talks continued and we made great progress”.

Vance also suggested the possibility that the US could agree to unfreeze Iranian assets.

“We wanted to make sure that we set up a process where if, if we ever unfreeze Iranian assets, we can ensure that that that Iranian money goes to help the people of Iran and not to fund terrorism,” he said.