All sides showing 'political will' for Iran deal: EU

EU foreign policy chief Federica Mogherini said Sunday all sides had shown the political will needed to strike a nuclear deal with Iran, praising the "good results" despite a day of tough talks, AFP reports.

"I would say that the political will is there. I've seen it from all sides. So that we've tasked negotiating teams to continue work immediately tonight on the texts" for an accord, Mogherini told reporters in Vienna.

The teams drafting the text of a final accord -- which is going to be accompanied by several highly technical annexes -- would try to "close all the issues" to reach a solid political understanding, she said.

Although many of the ministers were leaving the Austrian capital late Sunday, including Iran's Mohammad Javad Zarif, Mogherini said they would be back "in the coming days as soon as the work on the text has moved forward to finalise the agreement."

"Everybody is very much aware of the fact that we have conditions now to close the deal," she told reporters.

"There's a good deal, and we have to use these hours these days to do it. Postponement is not an option," she insisted, adding however that everyone was prepared to be flexible if a few more days were needed to reach a deal curtailing Iran's nuclear programme.

"We don't have new points open on the agenda, we're not re-negotiating things," Mogherini said, adding the ministers had given political guidelines to their teams on how to advance.

She said the remaining "open points" were mainly how to "translate the political understandings that we reached already into concrete detail."