After United States President Donald Trump threatened to decertify the nuclear deal with Iran, President Hassan Rouhani accused the former of levelling baseless accusations.
Rouhani said US President's speech was full of insults and fake accusations against Iran.
"The Iranian nation has not and will never bow to any foreign pressure...Iran and the deal are stronger than ever ... Iran's Islamic Revolutionary Guards Corps will continue its fight against regional terrorists," Rouhani said.
Rouhani further asserted that Iran will stick to the nuclear deal.
Vowing to strengthen the country's defences, Rouhani said the nuclear deal is much stronger than what US President Donald Trump thinks, reported the Independent.
"Tonight's remarks (by Trump) showed that the deal is much stronger than what he thought during the US presidential campaigns," Rouhani said.
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"The US is more lonely than ever about the deal," he added.
Speaking on state television soon after Trump delivered his speech at the White House accusing Iran of violating the spirit of the 2015 nuclear deal, Rouhani said a multinational nuclear deal could not be revoked by one country.
The Iranian President said Tehran is committed to all international accords and would continue to fight against terrorism.
He added that the country will remain committed to the 2015 nuclear deal as long as it serves Iran's national interests.
Earlier, President Trump accused Iran of violating the spirit of the landmark 2015 nuclear deal and threatened to rip up the agreement.
Trump though did not terminate the agreement completely, but called it weak and poorly constructed.
"As I have said many times, the Iran deal was one of the worst and most one-sided transactions the United States has ever entered into, " Trump while addressing the media at the White House.
"In the event we are not able to reach a solution working with Congress and our allies, then the agreement will be terminated. It is under continuous review and our participation can be canceled by me as President at any time.