On a day when a single sentence from Iran's Revolutionary Guards turned a narrow lane of water into a question of survival for those who sail it, the old drama of power and passage played out again over the Strait of Hormuz. Ten days of American strikes, justified by the deaths of service members, have now met a tightening Iranian answer: threats against bridges, power grids, and the energy that moves the wider world. Like many chokepoints in history, this one matters less for what it is than for what everyone depends on it not becoming. For now, the sea and the cities along it hold their brea
IRGC Says Southern Strait of Hormuz Is Mined as US Strikes and Iranian Threats Escalate
"Either all or none" — and the strait is now said to be mined
Mark
Start with the mine warning. What exactly did the IRGC say?
Mimi
Its spokesperson told shipping companies the southern route through the Strait of Hormuz is mined. That follows an IRGC Navy warning against using alternative routes.
Luke
Worth noting it's a declaration, not a confirmed finding. The reporting doesn't show anyone verifying that mines are actually there.
Mark
So it could work as a deterrent even if unverified?
Mimi
Shipping firms have to treat the warning seriously either way. That's why it matters for trade.
Mark
And the US side?
Mimi
CENTCOM announced ten straight days of strikes, and Trump said they were retaliation for killed US service members. He also threatened to bomb bridges and power plants if ships are attacked.
Luke
Iran says bridges were hit, in Bandar Khamir and on the Bandar Abbas road toward Shiraz. Those reports come from Fars and Tasnim, so they're Iranian-sourced claims here.
Mark
What about Iran's threat to cut electricity?
Mimi
Tasnim reported Tehran would cut power to US regional allies if its bridges or plants are hit, and Mousavi said the same.
Luke
How, exactly, isn't explained. And there are no casualty figures at all. The 7% oil supply figure for the Houthi blockade is a Reuters-reported expectation, not a measured loss.
Mark
And the tanker off Oman?
Mimi
Struck by an unknown projectile, crew in lifeboats. Nobody has been named as responsible.
Le Pouls
- The IRGC has told shipping firms the southern Strait of Hormuz route is mined, forcing captains to weigh every passage against the risk of a hull breach.
- Ten consecutive days of US strikes have pushed the confrontation from the sea into Bandar Abbas, Ahvaz, and bridge corridors toward Shiraz.
- Tehran is threatening to cut electricity to US regional allies and hit energy sites if its own bridges and plants are struck, widening the battlefield beyond the Gulf.
- The Houthis have declared a naval blockade of Saudi Arabia in Bab al-Mandeb, and a tanker was struck off Oman with its crew forced into lifeboats.
- Casualty counts and damage assessments remain absent, and the only voices on the ground are Iranian, leaving markets and shippers to act on fragments.
On a day when a single sentence from Iran's Revolutionary Guards turned a narrow lane of water into a question of survival for those who sail it, the old drama of power and passage played out again over the Strait of Hormuz. Ten days of American strikes, justified by the deaths of service members, have now met a tightening Iranian answer: threats against bridges, power grids, and the energy that moves the wider world. Like many chokepoints in history, this one matters less for what it is than for what everyone depends on it not becoming. For now, the sea and the cities along it hold their breath, and the rest of the world waits to learn what will be spent and what will be spared.
The warning reached shipping companies in the plainest language: the southern route through the Strait of Hormuz is mined. It came from the spokesperson for Iran's Revolutionary Guards and landed atop threats the Guards had already issued against any vessel using alternative lanes through the strait.
Tehran has argued that no regional infrastructure will be safe unless Iran's own security is guaranteed, and its parliament speaker and chief negotiator, Mohammad Bagher Ghalibaf, has said the strait will never return to its prewar condition. He framed the standoff as all or nothing, warning that if Iran cannot sell oil, no one in the region will be allowed to. Washington, in his telling, has escalated by sending new equipment while claiming it wants an end to hostilities.
From Washington came word that US Central Command had struck Iranian targets again on President Trump's orders, the tenth straight day of strikes. Trump framed them as retaliation for the killing of American service members, and had warned that if ships were attacked, bridges and power plants, including in Tehran, would be bombed.
Iran answered in kind. Tasnim reported that electricity would be cut to US regional allies if Iranian bridges or plants were hit, and that energy facilities tied to Washington would be targeted. The exchange has pushed the possible battlefield well beyond Hormozgan.
On the ground, Iranian state media reported explosions in Bandar Abbas, strikes in Ahvaz, and attacks on bridges in Hormozgan and on the route toward Shiraz, with outages reported in the Kahorstan area. The Houthis, meanwhile, have declared a naval blockade of Saudi Arabia in the Bab al-Mandeb Strait, a passage Reuters says could affect 7 percent of global oil supply, and an oil tanker was struck off Oman, its crew taking to lifeboats.
Much remains unknown. Every account comes from Iranian outlets and the Hormozgan Governorate, and no casualty figures or damage assessments have been released. Watch for whether shipping firms reroute or halt transits, whether the threats against bridges and power plants are carried out, and how energy markets respond.
The warning to shipping companies was short and blunt: the southern route through the Strait of Hormuz is mined. It came from the spokesperson for Iran's Islamic Revolutionary Guard Corps, and it landed on top of an already crowded set of threats over one of the world's most important maritime chokepoints.
The IRGC Navy had previously warned vessels against using alternative routes through the strait. The mine declaration tightens that further. Tehran has also said no regional infrastructure will be safe if Iran's security is not guaranteed, and that the strait's security depends on there being no American forces present. Mohammad Bagher Ghalibaf, Iran's Parliament Speaker and top negotiator, added that the strait will not return to its pre-war conditions. He framed the conflict as "Either all or none," warning that in a region where Iran cannot sell oil, no other country will be allowed to. That has been widely read as a threat to regional energy infrastructure and trade routes.
Ghalibaf also accused Washington of escalating by deploying new military equipment, which he said contradicts its stated wish to end hostilities. In a post on X, he mocked American intelligence assessments, suggesting the US was gauging Iran's capabilities by its own "meager" IQ, and he claimed Iran has fully mastered what he called "American antics."
On the American side, US Central Command announced fresh strikes on Iranian targets at President Donald Trump's direction. That makes ten consecutive days of strikes. Trump said they were retaliation for the killing of US service members. He had earlier warned that if ships are attacked, the United States will bomb bridges and power plants, including in Tehran.
Iran has answered in kind. Tasnim News Agency reported that Tehran will cut electricity to US regional allies if Washington hits Iranian bridges or power plants, and that Iran threatens regional energy facilities if attacked. A military source cited by Tasnim said Tehran would target bridges or energy sites associated with the US. IRGC Aerospace Commander Mousavi said cutting power would be Iran's response to attacks on its infrastructure. Taken together, the exchange stretches the potential scope of the fighting beyond Hormozgan to Tehran and to US-linked interests abroad.
Reports from the ground point to strikes already under way. Iran's state broadcaster IRIB reported three explosions in western Bandar Abbas, the port city. The Hormozgan Governorate said sounds heard in Bandar Abbas, nearby coastal areas and Gulf islands were linked to clashes in the Strait of Hormuz. Mehr News Agency reported that several locations in Ahvaz were hit by US attacks, with an additional explosion of unknown nature there. Bridges are a focal point: Fars News Agency reported the Bandar Khamir Bridge in Hormozgan was targeted, and a Tasnim reporter said the same of the Bandar Abbas-Khorstan-Lar Bridge, on the route from Bandar Abbas toward Shiraz. Power outages were reported in the Kahorstan area.
The pressure is not confined to Hormuz. The Houthis announced a naval blockade of Saudi Arabia in the Bab al-Mandeb Strait, which Reuters reported could affect 7% of global oil supply. The UK Maritime Trade Operations Center reported an oil tanker struck by an unknown projectile about nine miles off Limah, Oman; the crew abandoned the vessel in lifeboats.
Much remains unclear. The available information comes from Iranian outlets, namely IRIB, IRNA, Mehr, Fars and Tasnim, and the Hormozgan Governorate. No casualty figures or full damage assessments have been provided. What to watch next is whether shipping companies reroute or pause transits after the mine warning, whether either side follows through on the threats against bridges and power plants, and how energy markets respond.
Citations marquantes
Either all or none.— Mohammad Bagher Ghalibaf, Iran's Parliament Speaker
If ships are attacked, the US will bomb bridges and power plants, including in Tehran (paraphrased).— President Donald Trump
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