Mogherini stated an agreement "could open the way for a normal diplomatic relation.”
The EU official said a deal could also allow a regional framework with Tehran to emerge which could tackle the Middle East’s many crises.
"If out of a series of crises in the Middle East [...] and the Iranian nuclear talks, we manage to get the opportunity for shaping a different regional framework in the Middle East, this would be a major game-changer for our security and the stability of our region,” she asserted.
Asked if she believed that Iran and the 5+1 group were approaching an agreement, Mogherini said, "Yes, we are getting close.”
The nuclear talks between Iran and the 5+1 group (the US, UK, France, Russia, China, and Germany) are will be continued on Monday.
The sides are planning to reach a political understanding by the end of March, and a comprehensive agreement by July 1.