Tehran (IP) - Iranian president's chief of staff said that extremists inside the US, the Zionist regime, and some countries in the regions were seeking the failure of the JCPOA Joint Commission's negotiation.

Iran PressIran News: Mahmoud Vaezi on Thursday called the Vienna talks complicated, saying that what had been done so far had been promising.

The third round of talks of the Joint Commission of the JCPOA kicked off in Vienna on Tuesday, stressing to speed up the negotiation process.

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