US Secretary of State Marco Rubio has instructed diplomats to tell host countries to cut ties with Iran. This includes shutting down branches of Iranian banks immediately. The US Treasury Department has targeted a Turkish bank and its subsidiaries, alleging they serve as financial lifelines to Iran.

These actions are part of a pressure campaign against Iran, which President Donald Trump had described as "economic D-Day". However, the measures have been introduced gradually over nearly two weeks, rather than as a single sweeping action.

Further details on the campaign and its impact are available from the source.