US National Security Council was launching an inter-agency review of whether the lifting of sanctions against Iran was in the United States' national security interests, US Secretary of State Rex Tillerson said in a statement.
In a letter to US House of Representatives Speaker Paul Ryan, the top Republican in Congress, Tillerson said Iran remained compliant with the 2015 deal, but said there were concerns about its role as a state sponsor of terrorism.
"The US Department of State certified to US House Speaker Paul Ryan today that Iran is compliant through April 18 with its commitments under the Joint Comprehensive Plan of Action," Reuters cited Tillerson as saying.
"President Donald Trump has directed a National Security Council-led interagency review of the Joint Comprehensive Plan of Action that will evaluate whether suspension of sanctions related to Iran pursuant to the JCPOA is vital to the national security interests of the United States," US Secretary of State added.
He did not say how long the review would take but said in the letter to Ryan that the administration looked forward to working with Congress on the issue.
