In an interview with TASS, he said that for the resuscitation of the nuclear deal at this stage, only one thing is needed: the return of the negotiators to Austria and the successful completion of the discussion.

“It is quite possible if there is an appropriate political will.

Iran, Russia and China have it.

We do not observe this from the side of Western countries,” Ulyanov said.

Earlier, Russian Deputy Foreign Minister Sergei Ryabkov said that the JCPOA is "in the intensive care unit."

On December 20, the United States authorities said that Tehran "killed the possibility of a quick mutual return" of the United States and Iran to the implementation of the Joint Comprehensive Plan of Action (JCPOA).

Russia's permanent representative to international organizations in Vienna, Mikhail Ulyanov, stressed that the impasse in the negotiations in Vienna on the restoration of the JCPOA could lead to an uncontrolled escalation.