The sanctions relate to Informatics Services Corporation (ISC), the technology arm of the Central Bank of Iran (CBI), the Treasury Department said in a statement.
Iranian media said several missiles hit a village in the Sistan-Baluchistan province that borders Pakistan, killing three women and four children, all non-Iranians.
Killing of Soleimani, particularly following Trump's withdrawal from nuclear deal, reimposition of sanctions on Iran in 2018, resulted in a peak of tensions between Iran, US