The United States on Tuesday imposed sanctions on four individuals in Iran for aiding the Bahrain-based, U.S.-designated terrorist group al-Ashtar Brigades, the Treasury Department said in a statement. The sanctions were imposed in coordination with Bahrain's government and allege that the targeted individuals "materially assisted, sponsored, or provided financial, material, or technological support for, or goods or services to or in support of" al-Ashtar Brigades. The U.S. action "underscores our collective commitment to disrupting Iran's destabilizing forces and threats, particularly those which threaten our partners in the region and around the world," Brian Nelson, U.S. under secretary of the Treasury for terrorism and financial intelligence, said in a statement.