Iranian President Hassan Rouhani on Tuesday said, Tehran will negotiate with the other signatories of a multinational nuclear deal, bypassing Washington.
He called the US withdrawal from the landmark pact "unacceptable", according to Al Jazeera.
Rouhani's comments came after US President Donald Trump pulled out of the deal also known as the Joint Comprehensive Plan of Action (JCPOA).
Rouhani said, the deal will remain in place, if we achieve the deal's goals in cooperation with other members of the deal.
He slammed America by saying that it has undermined its commitment to an international treaty.
The foreign ministry is to negotiate with the European countries, China and Russia in coming weeks, Rouhani said.
The Iranian President further hit out at the US saying it has done nothing except put empty signatures on pieces of paper.
United States President Donald Trump on Tuesday announced the US withdrawal from the JCPOA or Iran nuclear deal.
President Trump said that he will sign a presidential memorandum to begin reinstating U.S. nuclear sanctions on Iran.
Under the deal signed in Vienna in 2015 with six world powers - the US, UK, France, Germany, Russia, China and the European Union - Iran promised not to pursue nuclear weapons while scaling back its uranium enrichment programme.
In return, international sanctions were lifted, allowing it to sell its oil and gas worldwide.