TEHRAN, Young Journalists Club (YJC) - "We are gradually coming to the conclusion that an internal decision by the US to leave the (Joint Comprehensive Plan of Action) has already been made or is close to being made," Ryabkov said in an interview with Interfax news agency on Saturday.
"This could be one of Washington's big foreign policy mistakes, a big miscalculation in American policy," he added.
On Friday, US President Donald Trump extended waivers of economic sanctions on Iran for another 120 days but said he was doing so “for the last time.”
Although the US president declined to withdraw from the Iran deal — which he has long railed against and formerly promised to “rip up” — he gave a four-month deadline to the US Congress and America’s main European allies to address what he called the “disastrous flaws” of the deal.
The agreement, reached between Iran and the P5+1 countries -- the US, the UK, France, China, Russia and Germany -- puts limitations on parts of Iran’s nuclear program in exchange for removing all nuclear-related sanctions.
A decision to reimpose sanctions would have effectively ended the 2015 Iran nuclear agreement.
Ryabkov stressed that Russia must unite with Europe and China and undertake "intense work" to keep the existing agreement intact, adding, "In what we heard yesterday, I do not see any invitation for Iran to enter dialogue. This defies the logic of the agreement."
"Russia will do everything in its power to save the agreement," he noted.
The European parties to the deal, China and Russia have made it clear that they will not reopen negotiations on the deal, which they say is working as it is; and Trump’s demands could thus only be addressed by domestic US law, with no jurisdiction over Iran or the International Atomic Energy Agency, and with no direct effect on the JCPOA.
Iran’s Foreign Ministry also announced on Saturday that the country would commit to no obligation beyond those it has already agreed to under the JCPOA and that it would not renegotiate the deal.
“The Islamic Republic of Iran stresses clearly that it will take no measures beyond its commitments under the JCPOA and will accept no changes to this agreement now or in the future and will not allow that the JCPOA be linked to any other issue [than the nuclear issue],” the Iranian Foreign Ministry said in a statement on Saturday.