But the new sanctions on Friday were imposed for the additional reason of “terrorism”, Treasury said, adding that Iran 's central bank had provided “billions of dollars” to two groups blacklisted by the US .
“Treasury's action targets a crucial funding mechanism that the Iranian regime uses to support its terrorist network, including the Qods Force, Hezbollah and other militants that spread terror and destabilise the region,” said US Treasury Secretary Steven Mnuchin.
The Qods Force conducts international operations for Iran 's elite Revolutionary Guards, while Hezbollah, the Shia militant group and political party in Lebanon, is among Iran 's closest regional partners.
Washington also imposed sanctions on Iran 's sovereign wealth fund, whose board of trustees includes President Hassan Rouhani, as well as Etemad Tejarate Pars, a company that the Treasury Department said had sent money internationally on behalf of Iran 's defence ministry.
Trump recently said that he hopes for talks with Rouhani, who responded that Trump must first ease sanctions.