The United States announced new sanctions against Iran over its ballistic missile program and military activities in the Middle East, a few hours after adhering to the international nuclear deal with Tehran.
Washington confirmed that the Houthi militias were attacking Saudi Arabia with Iranian weapons, reported Al Arabiya.
Washington also said Iran was continuing to supply the Houthis with weapons threatening the security of navigation in the Red Sea adding that Iran was deporting Afghan refugees who refuse to fight in Syria.
The US State Department imposed sanctions on 18 individuals and entities associated with the program of the Ballistic Missiles and the Iranian Revolutionary Guard Corps (IRGC).
"The United States remains deeply concerned about Iran's malicious activities across the Middle East which jeopardizes stability, security and prosperity in the region, the State Department said.
White House officials announced Monday evening that Washington was preparing additional sanctions on Tehran while maintaining an agreement on Iran's nuclear program, signed on July 14, 2015.