TEHRAN (FNA)- Iranian Parliament Speaker Ali Larijani lashed out at the recent US Congress approval against Tehran after the nuclear deal, describing it as a childish decision by the American lawmakers to bring their country out of passiveness.

"On the US Congress decisions, I should say that I generally think they have been passive in their diplomatic conduct and want to come out of this passiveness through childish decisions," Larijani said, addressing an open session of the parliament in Tehran on Monday.

On the US Congress approval which allows the Americans to claim�Iranian funds in a case which is currently before the American Supreme Court, he underlined that seizing Iran's assets is unjust and means "robbery".

Larijani warned of Iran's retaliatory measures against Washington's moves, and said, "Certainly, the US measures will be reciprocated and we are working on plans to this end."

The US Congress hostile moves against Tehran came after Iran and the world powers reached a final agreement in Vienna on July 14 to end a 13-year-old nuclear standoff.

In a breach of the nuclear deal between Iran and the Group 5+1 (the US, Britain, France, Russia, China and Germany), Washington passed a law affecting its Visa Waiver Program, which exempts nationals from 38 countries from having to obtain visas to visit the US but the American officials have promised to find a way to nullify the law.

The Iranian foreign ministry warned on Monday that the country will take reciprocal steps if faced with the powers, specially the US, measures against the nuclear agreement.

"Any measure outside the agreed details (related to the nuclear deal) will be responded by Iran's reciprocal and appropriate actions," Foreign Ministry Spokesman Hossein Jaber Ansari told reporters in Tehran today.

He referred to the remarks made by the American officials and presidential election hopefuls in the US against Iran, and said, "The internal issues and power game in the US are not related to us."

"What is related to our interests will be implemented based on the agreements made in the Joint Comprehensive Plan of Action (JCPOA) and the technical points which have been considered before (its endorsement)," Jaber Ansari stressed.

In relevant comments last Wednesday, Iranian Foreign Minister Mohammad Javad Zarif underlined that the US administration is responsible for resolving its internal disputes over the nuclear agreement with Iran.

In a breach of the nuclear deal between Iran and the Group 5+1 (the US, Britain, France, Russia, China and Germany), Washington passed a law affecting its Visa Waiver Program, which exempts nationals from 38 countries from having to obtain visas to visit the US but the American officials have promised to find a way to nullify the law.

"We discuss issues with the US administration as the representative of the entire United States and we have nothing to do with the Congress," Zarif said in a joint press conference with his Mongolian counterpart Lundeg Purevsuren in Tehran.

"The US administration has specific responsibilities on the international scene and it should settle its internal problems in any way that it knows," he added.

Zarif referred to US Secretary of State John Kerry's letter on the US Visa Waiver Program law to promise Washington's efforts to nullify the Israeli-sponsored senate approval, and said actions and not words will guarantee the implementation of the nuclear deal.

"If the law is fully implemented, it will explicitly violate the Joint Comprehensive Plan of Action," he warned.

Kerry in a letter to Zarif underlined that the US is fully committed to the termination of the sanctions based on the Joint Comprehensive Plan of Action and its undertakings based on the agreements in the JCPOA, according to Iranian Foreign Ministry Spokesman Hossein Jaber Ansari.

Kerry has also stressed that the US administration will implement changes in the visa waiver program in a way that they won't trouble other countries' trade and economic cooperation with Iran, adding that the administration has numerous instruments which can stop implementation of the law within the domain of the president's authorities, Jaber Ansari said.

By Fars News Agency