Breaking news: Maritime authorities are now drawing a sharper line between Iran’s claim that the Strait of Hormuz is closed and what appears to be happening on the water: the route is still being used, but under severe threat conditions.
This is the new angle in the Iran crisis after List25’s earlier coverage of Iran’s closure claim, U.S. strikes, and the wider retaliation wave across Gulf states. The question has shifted from what Tehran says it has closed to whether commercial ships still have a usable route through the world’s most sensitive energy corridor.
The Guardian reported that the United Kingdom Maritime Trade Operations center placed the maritime security threat level in the Strait of Hormuz at “severe,” but said the southern route remains available and has been expanded to accommodate two-way traffic. Gulf News reported the same core point, citing the Joint Maritime Information Center: Iran says the strait is closed, but international maritime authorities have not confirmed a full shutdown.
The New Angle: Open, But Not Safe
The latest advisory matters because it separates two different questions. Iran’s Revolutionary Guards have said the Strait of Hormuz is closed “until further notice.” Maritime monitors, however, are saying a southern route remains available, even as the threat level stays extremely high.
According to The Guardian’s live coverage, UKMTO advised mariners to remain alert to mine dangers and encouraged coordination with U.S. Naval Cooperation and Guidance for Shipping. The advisory also said ships may transit the southern route without coordination and that there is no controlling authority regulating passage or charging a fee for any route.
That directly challenges Iran’s attempt to frame passage through Hormuz as something that must move through Tehran-approved lanes. Gulf News reported that the southern route has been expanded for two-way traffic, while ships continue monitoring developments.
U.S. Says Traffic Is Still Moving
The U.S. position is also hardening. The Guardian reported that U.S. Central Command said the Strait of Hormuz is “open to all vessels seeking to lawfully transit the international waterway.” CENTCOM said U.S. forces are positioned to protect freedom of navigation and argued that Iran does not control the strait.
The Guardian also reported that President Donald Trump said in an NBC News interview that the strait is open to commercial traffic, despite Iran’s closure announcement. That statement puts Washington publicly behind continued transit rather than treating Iran’s announcement as a de facto shutdown.
The practical risk is still obvious. Gulf News reported that the Cyprus-flagged GFS Galaxy was damaged in what CENTCOM described as an IRGC attack while transiting the waterway. The ship caught fire and suffered engine-room damage. Ten Indian nationals were rescued, while one remained missing, according to India’s foreign ministry.
Why This Matters
The Strait of Hormuz carries roughly one-fifth of global oil and liquefied natural gas shipments. A formal closure would be a massive energy shock. But a “not closed, still severe” status creates a different problem: shipping may continue, but insurers, crews, navies, and energy traders have to price in the risk of missiles, drones, mines, and competing route claims.
It also complicates diplomacy. Oman has been hosting talks over safe passage through the strait, while Qatar has played a mediation role in the wider U.S.-Iran crisis. The National reported that Oman summoned Iran’s ambassador after drone attacks targeted areas in Oman, while Qatar condemned renewed Iranian attacks and said it reserves the right to respond.
So the latest reading is tense but specific: Hormuz is not confirmed shut, the southern route remains open, and ships are still moving. But the waterway is now operating under severe security conditions, with Iran, the U.S., and regional states testing who can actually control passage.
Sources: The Guardian; Gulf News; The National.