Iran's Islamic Revolutionary Guard Corps (IRGC) has issued a stern warning to international shipping, declaring that any vessel crossing the Strait of Hormuz without explicit authorization will face consequences.

The military branch stated that only routes approved by Tehran are permissible, signaling a tightening of control over the narrow waterway that handles roughly a fifth of global oil consumption.

The warning comes amid ongoing negotiations between the United States and Iran, adding a layer of operational uncertainty for energy traders and shipping companies.

While diplomatic channels remain open, the IRGC's rhetoric suggests that Tehran is leveraging its strategic position to extract concessions or deter unauthorized maritime activity.

The threat of interception or detention raises the risk premium for tankers and cargo ships transiting the corridor.

Markets are likely to monitor the situation closely, with Brent crude and shipping equities sensitive to any escalation in the Strait.