“Mr. Trump’s remarks on Iran…contained nothing but expletives and a pile of delusional allegations against the Iranian nation,” Rouhani said in a televised speech on Friday moments after Trump delivered a speech outlining US strategy on the Islamic Republic.

The US president refused to certify the 2015 international nuclear agreement between Iran and the five permanent members of the UN Security Council and Germany and warned he might ultimately terminate it, in defiance of other world powers and undermining a landmark victory of multilateral diplomacy.

Trump said he would choose not to certify that Tehran is complying with the nuclear deal, known as the Joint Comprehensive Plan of Action (JCPOA).

Trump also said his goal is to ensure Iran would never obtain a nuclear weapon, adding, "We will not continue down a path whose predictable conclusion is more violence, more terror and the very real threat of Iran’s nuclear breakout."

While Trump did not pull Washington out of the nuclear deal, he gave the US Congress 60 days to decide whether to reimpose economic sanctions against Tehran that were lifted under the pact. Reimposing sanctions would put the US at odds with other signatories of the accord such as the UK, France, China, Russia and Germany, as well as the European Union.