FNA- Iranian Parliament Speaker Ali Larijani underlined that the extension of Iran Sanctions Act (ISA) by the US Congress is a blatant deceptive act.

"The action taken recently by the US Congress and the House of Representatives to extend sanctions on Iran for another ten years is surely in violation of some articles of the nuclear deal reached by Iran and the major world powers including the US in July, 2015," Larijani told reporters on Tuesday.

"I believe that the decision by the US Congress is surely a measure of deception," the Iranian parliament speaker added.

Larijani reiterated that the measure is certainly unacceptable.

His remarks came in reaction to the extension of the Iran Sanctions Act (ISA) by the US Senate on Thursday that clearly violates the last year nuclear deal. Iranian officials have warned that Tehran has prepared itself for showing a tough reaction.

On Sunday, Iranian President Hassan Rouhani warned the US of Tehran's firm response to the implementation of the Iran Sanctions Act whose extension for another 10 years was approved by the Senate earlier this month and waits for President Barack Obama's endorsement.

"As stressed by Supreme Leader (Ayatollah Khamenei), the Islamic Republic of Iran has and will never violate the nuclear deal; we are committed to our undertakings and I, as the president and head of the Supreme National Security Council (SNSC), declare clearly that we will not bear violation of the JCPOA by any members of the G5+1 and will respond it properly," President Rouhani said in Tehran, addressing the Iranian MPs in a session to submit the next year budget plan to the parliament for approval.

Stressing that the US congress's extension of the ISA is against the JCPOA, he said, "The US president is required to use his authorities and prevent its approval and specially implementation. I declare clearly that if the approval is implemented, it will clearly violate the nuclear deal and will be followed by our firm response; we even consider its endorsement by the US president against the US undertakings and it will face appropriate reaction."

President Rouhani had also on Saturday requested the world powers, party to the nuclear deal with Tehran, to take action to stop Washington from damaging the Vienna agreement, warning that the US is treating the multilateral deal based on its own antagonistic aspirations.

"The nuclear deal is the product of seven countries' cooperation and in line with global peace and security. Every one should try to safeguard its achievements and we shouldn�t allow any country to take action to weaken the agreement as it desires," President Rouhani said in a meeting with Russia's special envoy on Syria, Alexander Lavrentiev, in Tehran.

"Iran has always been and will be committed to its international undertakings and other members of the Group 5+1 should fully act upon their undertakings too for the nuclear deal to remain," he added.

Lavrentiev, for his part, referred to the developments related to the nuclear deal, and said, "Russia's position on the nuclear deal is stable and strong and undermining the agreement is no way justified."

Before President Rouhani, Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei had warned late November that implementation of the extended Iran sanctions law for another 10 years would be equal to the violation of the nuclear agreement reached between Tehran and the six world powers in July 2015.

"There were a lot of debates about sanctions in the nuclear talks, but now they raise the issue of extending the sanctions in the US Congress and claim that these are not sanctions but renewal (of earlier sanctions)," the Supreme Leader said in a meeting with a group of Iranian Navy commanders and officials in Tehran last Sunday on the occasion of the National Navy Day.

Ayatollah Khamenei pointed to the nuclear talks with the world powers, and said, "Initiating sanctions is no different from renewing them after their expiry date, as the latter is also (an instance of imposing) sanctions and a violation of the undertakings already taken up by the opposite side."