President Donald Trump says the United States is reinstating a naval blockade aimed at Iran’s ports and related shipping after recent attacks involving vessels in or near the Strait of Hormuz. In statements posted on social media, Trump says the strait remains open and that U.S. forces will work to keep it open for transit. Multiple outlets report that the U.S. blockade is targeted at Iranian ships and at vessels trading with Iran, while allowing other commercial traffic to continue.

Several reports say the U.S. also plans to charge a 20% fee on cargo shipped through the strait as a mechanism to cover security costs. Outlets describe the fee as applying to shipping using the waterway, under a new payment system.

Reporting also notes that the U.S. previously imposed a blockade in mid-April and lifted it in mid-June, following an interim agreement that set a 60-day negotiation period. With negotiations reportedly stalling amid intensified fighting over control and access to the strait, the administration moves to reimpose the blockade and introduce the proposed toll.