Iran and the United States traded barbs over the landmark 2015 nuclear deal on Thursday, with the USA leader accusing Tehran of not living up to the spirit of the accord and Iran's top diplomat urging Washington to fulfill its own commitments.
Iran signed the agreement, formally titled the Joint Comprehensive Plan of Action (JCPOA), in 2015 along with the United States and members of the United Nations Security Council.
"An unchecked Iran has the potential to travel the same path as North Korea, and take the world along with it", Mr Tillerson said.
A senior adviser said last month that the USA will continue to adhere to the deal and "will also work very hard to make sure that Iran does".
Tillerson's statement went on to describe some of those provocations, including support for terrorism, interference in Iraq, backing the Assad regime in Syria, support for the Houthis in Yemen, harassment of US navy ships in the Persian Gulf, and cyber-attacks against USA interests and allies.
He said that the implementation of the pact by Tehran required the United States "to change its path and act upon its undertakings".
"They are not living up to the spirit of the agreement, I can tell you that, and we're analyzing it very very carefully and we'll have something to say about it in the not-too-distant future", the president continued.
"If the US wants to turn the tables and drop the agreement, it is not a big deal", Gangi said. Iran has so far made no public comments on the latest developments.
"Iran is the world's leading state sponsor of terrorism and is responsible for intensifying multiple conflicts and undermining U.S. interests in countries such as Syria, Yemen, Iraq, and Lebanon, and continuing to support attacks against Israel".
Both Iran and Hezbollah are now fighting in support of Syrian President Bashar al Assad's forces.
Mr Tillerson said one of the mistakes in the way the deal was put together was that it ignored all the other serious threats Iran posed outside of its nuclear programme.
The landmark 2015 agreement saw crippling sanctions lifted after the International Atomic Energy Agency (IAEA) certified Tehran had restricted its sensitive nuclear activities.
Barack Obama argued the deal, between Iran and six world powers including China, Russia and the United Kingdom, was the best way to prevent Iran getting a nuclear weapon.
"Strategic patience is a failed approach", Tillerson said during an address from the State Department.
Trump has panned what he has called "the frightful Iran deal" reached by the U.S. and five other world powers under his predecessor, former usa president Barack Obama.
The historic deal between Iran and six major powers restricts Tehran's nuclear program in exchange for the lifting of global oil and financial sanctions against the Islamic Republic.