The officials, speaking on condition of anonymity, said Wednesday that the new restrictions, which are expected to be announced on Thursday, would target the few remaining banks not currently subject to “secondary sanctions,” the Washington Post reported.
The US State Department and Treasury Department declined to comment on the development.
The US uses what it calls “secondary sanctions” to pressure third parties into stopping their activities with the sanctioned country.
Experts believe that the move is likely to diminish channels Iran uses to import humanitarian goods, such as food and medicine especially at a time when the country is struggling to contain the new coronavirus outbreak.