Diplomats from Iran and five world powers recommitted today to salvaging a major nuclear deal amid mounting tensions between the West and Tehran since the US withdrew from the accord and reimposed sanctions.<br />''<br />'' Representatives of Iran, Germany, France, Britain, China, Russia and the European Union met in Vienna to discuss the 2015 agreement that restricts the Iranian nuclear program.<br />''<br />''Iranian Deputy Foreign Minister Seyed Abbas Araghchi told reporters after the meeting that the atmosphere was constructive, and the discussions were good. Fu Cong, the head of Chinese delegation, said that while there were "some tense moments" during the meeting, "on the whole the atmosphere was very good. Friendly. And it was very professional."<br />''<br />''<span style="color: #222222;">Both diplomats said there was a general agreement to organize a higher-level meeting of foreign ministers soon, but also that preparations for such a summit needed to be done well. A date has not been set.</span><br />