US Secretary of State Rex Tillerson has accused Iran of “alarming ongoing provocations” aimed at destabilising the Middle East and undermining America’s interests in the region.
“An unchecked Iran has the potential to travel the same path as North Korea and to take the world along with it,” Mr Tillerson said.
President Donald Trump earlier ordered a review of the Iran nuclear deal.
However, the US admits that Tehran is complying with the 2015 agreement.
Iran has so far made no public comments on the latest developments.
It has repeatedly denied accusations by the West that it was ever trying to develop nuclear weapons.
