The United States has formally added Iran's Islamic Revolutionary Guards Corps (IRGC) to its antiterrorism sanctions list.

According to an October 13 statement on the U.S. Treasury Department website, the government will put into effect Section 105 of the Countering America's Adversaries Through Sanctions Act, which was passed by Congress and signed by President Donald Trump in August.

The statement said the IRGC had been designated "for providing support to a number of terrorist groups, including Hizballah and Hamas, as well as to the Taliban."

The Treasury Department statement emphasized that the development did not mean that the United States has designated the IRGS as a foreign terrorist organization.

During a speech on U.S. policy toward Iran on October 13, Trump said his administration would place "tough sanctions" on the IRGC.

The same Treasury Department statement also designated three Iran-based organizations that provide technical and financial support to the IRGC.