Ireland's Foreign Minister Simon Coveney is to meet Iranian President Hassan Rouhani in Tehran on Sunday in his role as a U.N. Security Council facilitator of the nuclear deal agreed in 2015 between Iran and major world powers.
Iran has so far refused to take part in a meeting brokered by the European Union between world powers and the United States on reviving its 2015 JCPOA nuclear deal.
But European sources this week said that Tehran had given positive signs about opening informal talks after European powers scrapped plans to criticise Tehran at the U.N. nuclear watchdog.