A man and his son look at a medium-range missile on display for the Defense Week in Tehran, Iran, on Sept. 26, 2017. (Xinhua/Ahmad Halabisaz)

MOSCOW, Oct. 25 (Xinhua) -- The Russian Federation Council, or the upper house of the parliament, on Wednesday called for saving a multilateral deal on Iranian nuclear activities as U.S. President Donald Trump has threatened to abandon it.

"The Federation Council appeals to members of U.S. Congress with an urgent request to use all possible resources to prevent the emergence of this extremely dangerous situation," it said in a statement.

The council also called on the parliaments of Germany, France, China, Britain and the European Union to use their great influence on the political leadership of their states to preserve the historic agreement.

Russian senators believe that the collapse of the deal would irreparably damage efforts to maintain the nuclear non-proliferation regime and hinder the settlement of similar nuclear problems.

There are no grounds for curtailing cooperation with Iran on the nuclear issue, said the statement.

The Iran nuclear deal, formally known as the Joint Comprehensive Plan of Action (JCPOA), was reached between Iran, the five permanent members of the United Nations Security Council -- Britain, China, France, Russia and the United States -- plus Germany, in July 2015.

Under the deal, Iran agreed to halt its nuclear weapons program in exchange for economic aid and lifting of international sanctions.

However, on Oct. 13, Trump called for decertifying the agreement, alleging Iran had committed "multiple violations."

Though the decertification would not mean Washington's immediate exit from the Iran nuclear deal, it would open a 60-day window in which the U.S. Congress could reimpose nuclear-related sanctions on Iran.

Also on Oct. 13, International Atomic Energy Agency Director General Yukiya Amano said that Iran was implementing the JCPOA under a robust verification regime.

Russia has repeatedly said that Iran fully complies with the deal.