The United States imposed terrorism sanctions on Iran's envoy to the Houthis on Tuesday, a step possibly aimed at pressuring the group to reach an accord to end the five-year war in Yemen.
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The US Treasury described Hasan Irlu as an official of Iran's elite Quds Force, the country's extraterritorial black-ops arm and a pillar of Iranian efforts to project its power in Yemen, Syria, and elsewhere.
The US Treasury also blacklisted Iran's Al-Mustafa International University, alleging it uses its foreign branches as a Quds Force recruitment platform for intelligence collection and operations.
It also imposed sanctions on Yousef Ali Muraj, an Iran-based Pakistani the Treasury accused of supporting Quds Force efforts to carry out operations in the Middle East and the United States.