The 2015 deal between Iran and Britain, China, France, Germany, Russia, and the United States lifted sanctions on Iran in exchange for limits on its nuclear program. The US withdrew from the accord last year and imposed crippling economic sanctions that block Iran from selling crude oil abroad.
“Because of the destructive line that Washington keeps towing, this important achievement of international diplomacy... is in danger of falling apart,” Sergey Lavrov said, adding that “colleagues from the European Union” were not fully complying with the agreement either.
"Regrettably, we have to point to the inconsistency of our EU counterparts, which have also failed to implement their obligations," Lavrov lamented. "We are certain that if this policy of defaulting on UN Security Council resolutions, which Washington dictates to all countries around the world without an exception, continues, all this may result in serious negative consequences for the whole region and international relations in general."
In response to the US sanctions, Iran has pressured the European signatories to find a way to limit the impact on the Iranian economy. Tehran has slowly decreased its compliance with the terms of the deal a year after the US withdrawal.
After meeting with Iranian Foreign Minister Javad Zarif on Monday, Lavrov said Russia would demand full compliance from both the US and the EU, in which case Iran would be able to return to fulfilling its obligations in accordance with the deal.
Otherwise the agreement should be considered no longer existing, he said.
"Either the US and the EU return to full adherence to their obligations under the nuclear deal, which will lead to Iran returning to its voluntary obligations, as it has stated repeatedly or … the deal will not exist anymore,” he said.
Lavrov said US actions in relation to the nuclear deal "contradict all possible norms of international law."
"When an agreement has been negotiated and deemed obligatory by the UN Security Council, exiting this agreement is a blatant violation of all possible and impossible norms, principles, and rules," he stressed.
"At the same time, the US is forcing everyone else to violate the obligations they undertook in exchange for Iran adhering to the reached agreements. Meanwhile, Iran is expected to adhere to these agreements fully, which violates the very terms that this agreement was based on and that were approved by the UN Security Council."
Zarif said the US is trying to impose its influence on other countries, but Russia and Iran have taken action against this approach.
He criticized the European parties to the deal to failing to protect Iran against US sanctions.
“Although politically supported by the European countries, they have not taken action to counter US sanctions and to fulfill their commitments,” Zarif said.
AP and TASS contributed to this story.