Trump orders Iran deal review

US President Donald Trump has ordered a review of the Iranian nuclear deal according to secretary of state rex tillerson.

The deal, aimed at curbing Iran's nuclear ambitions was signed in 2015 under former US President Barack Obama along with China, France, Germany, Russia, United Kingdom and the European Union And proposes a gradual lifting of sanctions on Iran.

Tillerson sent a letter to house speaker Paul Ryan, confirming that Iran is compliant with its commitments under the deal however he also wrote that "Iran remains a leading state sponsor of terror through many platforms and methods."

Tillerson said the administration would conduct a review "to evaluate whether continuing to lift sanctions would be in US national security interests."

The United States has long accused Iran of being the world's biggest state sponsor of terrorism, saying tehran supported conflicts in Syria, Iraq and Yemen, and backed groups such as Hezbollah, its Lebanon-based ally.