Yellen began remarks prepared for a news conference by addressing what she called an unprecedented attack on Israel by Iran and its proxies, saying Treasury would use its sanctions authority and work with allies to "continue disrupting the Iranian regime’s malign and destabilizing activity."
The United States is using financial sanctions to isolate Iran and disrupt its ability to fund proxy groups and support Russia's war in Ukraine, the Treasury Department said. However, critics says the administration is not enforcing some key sanctions, providing Iran with a partial reprieve.
Treasury has targeted more than 500 individuals and entities connected to terrorism and terrorist financing by the Iranian regime and its proxies since the start of the Biden administration in January 2021, Yellen said.
That has included targeting Iran’s drone and missile programs and its financing of the Palestinian militant group Hamas, the Houthis in Yemen, Hezbollah in Lebanon, and Iraqi militia groups, she said.
"From this weekend’s attack to the Houthi attacks in the Red Sea, Iran’s actions threaten the region’s stability and could cause economic spillovers," Yellen said, without giving details.