Iran warns vessels against unapproved routes in Strait of Hormuz amid tensions

Iran's military command issued a warning on July 3, 2026, threatening ships that use unapproved routes in the Strait of Hormuz with a "forceful response." This development raises concerns about trade flows in this crucial passage for global energy supplies.

The warning came from Iran’s Khatam al-Anbiya Central Headquarters, a day after Qatari mediators noted positive progress in indirect negotiations between U.S. and Iranian officials regarding a peace deal. The statement, reported by Tasnim news agency, emphasized that any deviation from designated navigation routes would endanger the security of the offending vessels.

Background on the Strait of Hormuz Tensions

While the specific reasons for Iran's warning were not detailed, it follows a security dialogue led by U.S. Central Command (CENTCOM) in Bahrain, where regional leaders reiterated their commitment to the free flow of commerce in the strait. Iranian Deputy Minister of Foreign Affairs Kazem Gharibabadi criticized CENTCOM's statement, asserting that security in the Persian Gulf cannot be ensured under U.S. military oversight.

The Strait of Hormuz is vital, facilitating about one-fifth of global oil and liquefied natural gas trade. Since the onset of the conflict between the U.S. and Iran in late February, this strategic waterway has become a focal point in discussions aimed at achieving a lasting peace.

Incidents in the Strait of Hormuz

Despite Iran's commitment to ensure the safe passage of vessels as outlined in a memorandum of understanding signed with the U.S. on June 17, threats against ships not adhering to Iran's preferred routes have persisted. Reports indicate at least 49 attacks on commercial vessels in the strait since February 28, with many incidents attributed to Iranian forces.

• Incidents include drone attacks on:
• A Singapore-flagged cargo ship
• A Panama-flagged merchant vessel

As of July 1, 2026, transit levels through the strait have increased, with 45 vessels crossing on Wednesday, up from 34 on Tuesday, although they remain below the pre-war average of approximately 130 daily crossings.

Market Reactions and Oil Prices

Following reports of productive discussions in Doha, oil prices stabilized, with Brent futures for August delivery at $72.07 per barrel as of 02:30 GMT on July 3. The market responded to the fluctuating transit levels and geopolitical tensions, reflecting the ongoing uncertainty in the region.