DUBAI (Reuters) – The European Union’s Iran nuclear talks coordinator Enrique Mora is to visit Tehran on Tuesday, the semi-official agency Nour News reported on Saturday, as talks to revive Iran’s 2015 nuclear deal with world powers have stalled. “This trip could be seen as a new step in constructive consultations on the few but important issues that have remained in the Vienna talks,” Nour News said on Twitter. (Reporting by Dubai newsroom; Editing by Kirsten Donovan)