Iran’s Supreme National Security Council issued a stark warning on Saturday: as long as the United States maintains its naval blockade against Iran, Tehran will consider it a violation of the ceasefire — and will shut the Strait of Hormuz back down.

The warning comes just one day after Iran’s Foreign Minister Abbas Araghchi announced that the Strait of Hormuz was open to all shipping traffic, and that it would remain open for the duration of the ceasefire in Lebanon.

Reassertion of Control

Iranian state media and a senior military official stated that control of the Strait of Hormuz has now “returned to its previous state” under strict management by the armed forces.

The official warned that Iran will block transit through the waterway as long as the US naval blockade on Iranian ports continues.

Iranian Foreign Minister Abbas Araghchi had earlier announced that the strait was “completely open” to all commercial vessels in line with the Lebanon ceasefire, but only on a coordinated route announced by Iran’s Ports and Maritime Organization. Military vessels remain strictly banned.

Trump’s Position

President Trump quickly pushed back. While acknowledging the strait is open for commercial passage, Trump stated that the U.S. naval blockade will remain “in full force and effect” as it pertains to Iran, until negotiations are “100% complete.”

The blockade, which started Monday, has been “fully implemented,” according to Admiral Brad Cooper, head of U.S. Central Command.

The situation remains highly fluid. Both sides appear to be leaving the door open to diplomacy while maintaining maximum pressure — a high-stakes standoff with global energy markets watching every move.