Iran and the United States agreed on Saturday to task experts to start drawing up a framework for a potential nuclear deal, Iran’s foreign minister said, after a second round of talks following President Donald Trump’s threat of military action.

At their second indirect meeting in a week, Foreign Minister Abbas Araqchi negotiated for almost four hours in Rome with Trump’s Middle East envoy Steve Witkoff, through an Omani official who shuttled messages between them.

Trump, who abandoned a 2015 nuclear pact between Tehran and world powers during his first term in 2018, has threatened to attack Iran unless it reaches a new deal swiftly that would prevent it from developing a nuclear weapon.

Iran, which says its nuclear programme is peaceful, says it is willing to discuss limited curbs to its atomic work in return for lifting international sanctions.

Speaking on state TV after the talks, Araqchi described them as useful and conducted in a constructive atmosphere.

“We were able to make some progress on a number of principles and goals, and ultimately reached a better understanding,” he said.