MNA � Russian Foreign Minister Sergey Lavrov slammed the efforts of the United States to extend UN arms embargo against Iran which is due to expire in October.

In a letter to U.N. Secretary-General Antonio Guterres and the Security Council circulated Monday, the Russian minister said statements by U.S. State Department officials that the Trump administration doesn�t plan to resume its commitments under the nuclear deal but plans to invoke rights allegedly deriving from the resolution endorsing it are �ridiculous and irresponsible,� according to the Associated Press.

The Trump administration is unleashing a politically motivated campaign against Iran, said Lavrov, calling for �universal condemnation� of the US attempt to get the UN Security Council to impose a permanent arms embargo against the Islamic Republic.

He said the United States withdrew from the 2015 nuclear agreement between Iran and six major powers and now has no legal right to try to use the UN resolution endorsing the deal to indefinitely continue the arms embargo, which is set to expire on Oct. 18.

Lavrov�s letter went further in explaining Moscow�s strong opposition to an indefinite arms embargo and US use of the �snap back� provision.

�We are proceeding on the basis that the United Nations should not become hostage to the political situation in the United States, which has decided to withdraw from the plan,� he said. �There are no valid grounds for raising in the Security Council the issue of an arms embargo against Iran.�

Lavrov said the nuclear deal and the Security Council resolution �form a single whole� and can�t be considered separately. And under Article 25 of the UN Charter, �the United States side is obliged to carry out the decisions of the Security Council, rather than undermine them through its unlawful actions,� he said.

He said international courts have held "that a party which disowns or does not fulfill its own obligations cannot be recognized as retaining the rights which it claims to derive from a relationship.�

The United States, having violated the Security Council resolution and declined to implement the 2015 nuclear agreement has therefore �forfeited the possibility� of using the �snap back� provisions, he said.

Lavrov called on the US to stop undermining the nuclear agreement and the UN resolution. He said Russia and �other responsible members of the international community will continue to make every effort� to preserve the nuclear deal.

�The United States must recognize that there are neither legal nor other grounds for its policy of using Security Council mandates to pursue its own selfish interests,� Lavrov said.