Iranian military authorities have reimposed strict control over the Strait of Hormuz, effectively shutting it down again within hours, less than 24 hours after signs of a possible reopening.

The move comes as Iran accuses the United States of violating understandings by continuing maritime blockade measures against Iranian ports. Officials stated the strait has “returned to its previous status” under tight military control, with navigation heavily restricted unless conditions change.

According to Iranian commanders, the closure is directly tied to ongoing U.S. pressure, as Donald Trump confirmed that blockade operations will continue in full until a broader agreement — particularly on nuclear issues — is reached.

The rapid reversal follows a brief window of optimism after ceasefire talks, but quickly shifted back to escalation as Tehran warned it would not allow free passage while its own ports remain restricted.

Shipping activity is now limited to routes approved by Iranian forces, while United States Central Command reported that at least 21 vessels have already been forced to reroute since the blockade began.

The situation significantly raises the risk of a global energy disruption, with the Strait of Hormuz once again becoming a central pressure point in the standoff between Iran and the United States.