Story highlights Secretary of State Tillerson: sanction policy under review

"Iran remains a leading state sponsor of terror," Tillerson says

(CNN) Iran is sticking to the terms of its nuclear deal made with the Obama administration, Secretary of State Rex Tillerson has concluded, but he questions whether sanctions should keep being lifted, given Iran's continued support for terrorism.

The Secretary of State said the Trump administration was reviewing the lifting of sanctions against Iran, arguing that the country remains a sponsor of terrorism. Tillerson came to the conclusion Tuesday during a routine, quarterly report to Congress on Iran's progress in the nuclear deal.

Reapplying sanctions would violate the terms of the groundbreaking deal signed with Iran by former President Barack Obama, Russia, China and EU partners.

In a statement released by the State Department, Tillerson said Iran is making good on its commitment under the agreement, but added that President Donald Trump has ordered a review of the deal, known as the Joint Comprehensive Plan of Action.

In the letter addressed to Congress, Tillerson asserted that "Iran remains a leading state sponsor of terror through many platforms and methods."

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