The head of Iran's atomic energy agency said on Saturday he will meet next week with the chief of the UN's nuclear watchdog, as attempts to revive the country's nuclear deal stall.

"I will go to Austria to take part in the annual general conference of the International Atomic Energy Agency in Vienna, where I will meet with Director General Rafael Grossi," Iran's chief nuclear negotiator Mohammad Eslami told state television, as quoted in the AFP news agency.