UN nuclear chief to visit Tehran: IAEA
Iran responded three days later by inviting the UN nuclear chief to Tehran.Grossi will meet Foreign Minister Hossein Amir-Abdollahian and the head of Iran's atomic agency, Mohamed Eslami.
Grossi's last visit to Tehran was in September when he said he had technical discussions with Eslami.
Grossi's visit comes ahead of the resumption of nuclear talks on November 29 in Vienna, stalled since June. The talks aim to restore a 2015 deal that offered Tehran relief from sanctions in exchange for major curbs on its nuclear activities.
The Vienna talks will be attended by the remaining parties to the deal -- Britain, China, France, Germany, and Russia -- while the US will participate in negotiations indirectly.The US unilaterally pulled out of the deal in 2018 under the administration of President Donald Trump but talks to revive it began earlier this year.