Sept. 12 (UPI) -- The U.S. Treasury has sanctioned nearly three dozen people and firms, accused of being part of a massive fundraising, smuggling and weapon-procurement network for the Iran-backed Houthi rebels.

The network of 32 people and firms blacklisted Wednesday is located in Yemen, China, the United Arab Emirates and the Marshall Islands, and are accused of being Houthi-associated companies, their owners and key Houthi operatives.

The Treasury said those targeted finance and facilitate the Houthis' procurement of advanced military-grade materials, including ballistic and cruise missiles, as well as components for drones the Houthis have used to attack U.S. military and commercial vessels.

The United States has been targeting the Houthis amid Israel's war against Hamas, another Iran-backed proxy, which exploded into the open Oct. 7, 2023, when it attacked Israel.

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