The US secretary of state has accused Iran of “alarming ongoing provocations” aimed at destabilising the Middle East and undermining America’s interests.
“An unchecked Iran has the potential to travel the same path as North Korea and to take the world along with it,” Rex Tillerson said.
The US has ordered a review of the Iran nuclear deal, although it admits Iran is complying with its commitments.
Iran’s foreign minister dismissed Mr Tillerson’s criticism as “worn out”.
The country has repeatedly denied accusations by the West that it was ever trying to develop nuclear weapons.