LONDON: The US imposed terrorism-related sanctions Tuesday on Iran鈥檚 envoy to the Houthi militants in Yemen.

Despite Iran describing him as an 鈥渁mbassador,鈥� Hasan Irlu operates for the overseas wing of the Islamic Revolutionary Guard Corps (IRGC) known as the Quds Force, the US Treasury Department said.

Iran鈥檚 Al-Mustafa International University was also targeted with sanctions for serving as a platform for Quds Force operations and recruitment abroad.

Iran-based Pakistani citizen Yousef Ali Muraj was designated for  helping the Quds Force 鈥渃oordinate, plan and execute operations in the Middle East and United States.鈥�

Iran announced Irlu鈥檚 arrival in Yemen鈥檚 Houthi controlled capital Sanaa in October. The Iran-backed Houthis seized Sanaa in 2014 forcing the internationally recognised government to flee and sparking the conflict that has devastated the country.

鈥淏y dispatching Irlu to Yemen, the IRGC-QF is signaling its intent to increase support to the Houthis and further complicate international efforts to reach a negotiated settlement to the conflict,鈥� US Secretary of State Mike Pompeo said as the sanctions were announced. 

鈥淭he IRGC-QF is the Iranian regime鈥檚 primary tool to sow chaos and destruction across the Middle East,鈥� Pompeo added. The United States will continue to take action against the IRGC-QF to disrupt its facilitation networks and cut off resources that support the terrorist group鈥檚 activities.鈥�

In it鈥檚 designation, the Treasury鈥檚 Office of Foreign Assets Control said Iran鈥檚 dispatch or Irlu as an envoy to the Houthis made it the only country to recognise the militia as a government.

鈥淔or years, Irlu supported IRGC-QF efforts to provide advanced weapons and training to the Houthis,鈥� the designation said. 鈥淗e coordinated with other senior IRGC-QF leaders to support the group鈥檚 operations throughout the Arabian Peninsula and Yemen.鈥�

Irlu, who appeared with Houthi officials weeks after his arrival in Sanaa, is accused of helping train another Iranian regional proxy - the Lebanese group Hezbollah. 

He also coordinated with Iranian Quds Force commander Qassem Soleimani, who was killed by a US strike in Baghdad in January. 

Al-Mustafa International University, which claims to have branches in more than 50 countries, was sanctioned for helping the Quds Force, which the US and many other countries consider a terrorist organization.

The university allows its student body to serve as an international recruitment network, the designation said.

鈥淭he IRGC-QF uses Al-Mustafa University to develop student exchanges with foreign universities for the purposes of indoctrinating and recruiting foreign sources,鈥� it said. 鈥淎l-Mustafa has facilitated unwitting tourists from western countries to come to Iran, from whom IRGC-QF members sought to collect intelligence.鈥�

Recruits from the university have been sent to fight in Syria for Iranian-backed militias, including too that were made up of Afghan and Pakistani fighters.

The designations mean all property of those designated, as well as any entities that are 50 percent or more owned by them, that fall under US jurisdiction are blocked, and US persons are generally prohibited from dealing with them.

In addition, foreign banks that knowingly facilitate significant transactions for them, or people who provide material support to them, risk losing access to the US financial system.

*With Reuters