Andrea Gacki has stepped down as director of the US Department of the Treasury's Office of Foreign Assets Control (Ofac).

It is unclear when Gacki — who took a lead on administering US sanctions against Iran first in 2018 and then under "maximum pressure" measures — departed, but recent Ofac actions list Bradley Smith as the agency's acting director.

The Treasury department did not respond to TradeWinds' request for details of Gacki's departure, or when a permanent replacement might be hired.