The head of the UN’s nuclear watchdog said Wednesday Iran did not offer anything new during a recent meeting in Vienna about its nuclear program, but added that talks would continue.

Tehran had announced on November 2 that it was sending a delegation to Vienna to try to narrow differences with the International Atomic Energy Agency (IAEA), which is trying to keep tabs on Iran’s nuclear activity.

“So, they didn't bring anything new,” IAEA Director General Rafael Mariano Grossi told Reuters on the sidelines of the COP27 climate conference in Egypt. “We are going to meet again at a technical level in Iran in a couple of weeks.”

Iran is seeking closure of the IAEA's investigation of its nuclear activities, among other guarantees, in order to revive the country's 2015 nuclear deal with world powers.

That pact had restrained Iran’s nuclear program in exchange for relief from US, EU and UN economic sanctions, but former US President Donald Trump withdrew from it in 2018, demanding a stronger deal.

Indirect talks between Tehran and President Joe Biden's administration on reviving the largely hollowed-out deal are stalled.

“It is no secret that we haven't been able to register some tangible elements," Grossi said.

"We have an opportunity to re-engage to continue our work, but this is going to be happening after my reports’ release,” he added, referring to the IAEA’s upcoming quarterly reports on Iran due next week.

Reporting by Reuters