Rafael Grossi will meet with Iranian officials, in his first visit to the country since president Ebrahim Raisi took office

Iran says that the head of the International Atomic Energy Organisation (IAEA) is due to arrive in the country for talks with Iranian officials.

Kazem Gharibabadi, Iran’s envoy to the IAEA, said in a tweet that Rafael Grossi is arriving on Saturday, and will travel to Tehran. He is scheduled to meet Iran’s vice-president and the head of the country’s atomic organization, Mohammad Eslami, on Sunday.

The hardliner president-elect has caused alarm in some countries, though Iran and the US say agreement can still be found

World powers attempting to revive the Iran nuclear deal have warned of complications on the path to an agreement as they met for the first time since the election as Iranian president of Ebrahim Raisi, a hardline conservative cleric deeply antagonistic towards the west.

Jake Sullivan, the US national security adviser, said the arrow was pointing in the right direction, but he refused to say if sanctions imposed on Raisi by the Trump administration would be lifted. The German government’s human rights commissioner, Bärbel Kofler, said it was concerning that Raisi had not distanced himself clearly from human rights abuses. A European diplomat meanwhile warned the talks could not be open-ended, hinting strongly they needed a deal before Raisi took power in early August.