Irans Deputy Foreign Minister Ali Bagheri Kani has started a meeting with the representatives of France, Germany and the UK on Thursday evening.
Bagheri Kani wrote in a tweet last night that the negotiating teams in Vienna are closer than ever to an agreement After weeks of intensive talks.
[N]othing is agreed until everything is agreed, though, he noted, adding: Our negotiating partners need to be realistic, avoid intransigence and heed lessons of past [four years].
Irans top negotiator said that its time other parties to take their serious decisions.
Iran and the P4+1, namely China, France, Germany, Russia and the UK, are holding talks with the indirect participation of the US in Vienna to resume the JCPOA.