President Donald Trump's decision not to recertify the 2015 nuclear agreement with Iran shows the United States is not a reliable international partner, the Russian Foreign Ministry has complained.

"Such policy aimed at the erosion of the Joint Comprehensive Plan of Action (JCPOA) and its credibility in fact deals a heavy blow to the global nonproliferation efforts," Mikhail Ulyanov, the head of the Russian Foreign Ministry's Department on Nonproliferation and Arms Control, told Interfax, according to Russia-owned RT.com.

Trump's action also reinforces the belief that there is no sense in negotiating with the United States, and that any agreement would be "easily terminated," Ulyanov added.

Trump's action was "irresponsible," he continued, and given the current circumstances, that allows Iran to advance claims against the United States.

Russian Deputy Foreign Minister Sergey Ryabkov also warned that the Russia deal should not become a" bargaining chip" in the United States' growing political battles between Trump and members of congress, adding that the deal could collapse under U.S.-proposed improvements.

The Trump administration is trying to tie the agreement with issues that have nothing to do with it or Iran's nuclear program, he said, adding that it is a "worrying sign."

He also called on Moscow to continue to preserve the Iran agreement, following comments from the Russian Foreign Ministry that the use of "aggressive" rhetoric is "doomed to fail."

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