The United States is preparing to unveil a new package of economic measures against Iran next week as the Trump administration seeks to sharply deepen Tehran’s financial and commercial isolation. Treasury Secretary Scott Bessent said Thursday that the effort would combine intensified economic pressure with the continued U.S. naval blockade of Iranian ports, describing the forthcoming measures as unprecedented in scale. Specific financial restrictions have not yet been announced, leaving unclear whether the package will expand sanctions against Iranian institutions, foreign companies conducting business with Tehran, or financial networks used to move Iranian revenue abroad.

The planned measures would expand the administration’s existing Economic Fury campaign, which has targeted Iran’s oil exports, shadow banking networks, cryptocurrency infrastructure, military procurement channels and companies accused of facilitating sanctions evasion. Treasury has also warned foreign financial institutions that they could face secondary sanctions for facilitating prohibited Iranian commerce. Earlier measures have focused heavily on preventing Tehran from accessing revenue generated through oil and commodity sales while identifying overseas entities used to move funds or procure equipment for Iran’s military. The administration has increasingly paired those financial restrictions with physical enforcement at sea as part of an effort to constrain both Iran’s access to international markets and its ability to move goods through its ports.

The economic campaign is unfolding alongside an expanding U.S. naval blockade. Defense Secretary Pete Hegseth said Thursday that American forces are capable of sustaining the operation indefinitely by rotating ships through the region. U.S. forces have intercepted vessels accused of attempting to breach the blockade, including using disabling fire against at least one commercial ship. The administration has presented the blockade as a means of directly restricting one of Iran’s principal sources of revenue while maintaining pressure without immediately returning to a larger air campaign.

The renewed pressure comes as efforts to reach a broader agreement with Tehran remain unresolved. Iran has demanded sanctions relief, the release of frozen assets and an end to the U.S. blockade as conditions for fully reopening the Strait of Hormuz. Washington has rejected several of Tehran’s demands while insisting on unrestricted maritime passage and broader security concessions. The measures expected next week signal that the administration is preparing to increase economic pressure further if negotiations remain stalled, while leaving the precise scope of the next phase undisclosed.