The US Treasury Department on Wednesday sanctioned Iran's Persian Gulf Strait Authority, alleging that the agency extorted commercial vessels in the Strait of Hormuz to fund the Islamic Revolutionary Guard.
"The Iranian military's latest attempt to extort global maritime trade is proof that Economic Fury has left the regime desperate for cash," Treasury Secretary Scott Bessent said in a statement.
The sanctions target the PGSA and any person or entity cooperating with the agency, which was established earlier in May to approve transit through the Hormuz and charge tolls that could reportedly reach as high as $2 million per vessel.
Treasury said vessels transiting the strait had been required to submit information to the PGSA and follow Iranian-designated navigation routes near Iran's coastline in exchange for what Tehran described as permission for safe passage.
The sanctions form part of the Trump administration's broader "Economic Fury" campaign aimed at intensifying economic pressure on Iran and curbing its oil revenues.
"Forming a Wall of Steel, the US Naval blockade has ensured a record low amount of Iranian crude on the water. We will also be shutting down both Iranian airlines' access to landing spots, refueling, and ticket sales," Secretary Bessent said on X.
Treasury also warned shipping companies, insurers and financial institutions that they could face sanctions exposure if they comply with Iranian demands related to transit payments through the Strait.
The Department said prohibited payments could include transfers in traditional currencies, digital assets, informal swaps or other in-kind arrangements.