The statement by the Revolutionary Guards gave no details of the criticised routes but looked to be a response to an announcement by Oman, which also borders the strait, overnight of a temporary corridor.
Iran’s Revolutionary Guards cautioned Thursday (June 25, 2026) against any unauthorised crossings of the Strait of Hormuz, adding that vessels that do not comply “will be dealt with.”
One of the biggest sticking points in the talks between Tehran and Washington is the future of the strait, an important passage for petroleum exports that was blocked by Iran during the conflict.
Tehran says it aims to collect what it terms marine service fees, not tolls, but the United States says it is an international waterway and therefore cannot be charged.
“The only route for passage through the Strait of Hormuz is the route announced by the Islamic Republic of Iran,” declared the ideological arm of Iran’s military, the Revolutionary Guards.
They said in a statement that any crossing without authority is “unacceptable and extremely dangerous”.
They also condemned what they said was a new route via the waterway announced by “certain authorities”.
The statement provided no further details but seemed to be a response to an announcement overnight of a temporary corridor by Oman, which also borders the strait.
Omani authorities produced a plan of a route along the Omani coast, which they said had been negotiated with the International Maritime Organisation, a UN entity responsible for sea safety.
So yet, the only route approved by Iran is across a corridor hugging the Iranian shore.
Hormuz is a small channel between Iran and the Gulf nations, through which around 20 percent of the world’s crude oil and liquefied natural gas regularly pass.
At its narrowest point it is just approximately 30 kilometres (18 miles) across.
Tehran and Washington signed a memorandum of understanding last week to stop their conflict, which said commercial ships may pass the strait free of charge for the next 60 days.
It is unknown what arrangements will be in place after that time, with Iran and the U.S. now in discussions.
Iran and Oman on Tuesday (June 23, 2026) said they will explore the “costs” to be levied for services connected to governance of the strait.
U.S. Secretary of State Marco Rubio, visiting neighbouring Gulf nations this week, said Washington would not take any tolls or taxes.
