Iran’s Revolutionary Guard navy has issued a stern warning that any attacks on its oil tankers or commercial vessels will prompt a “heavy assault” on US bases and naval assets in the region, as a fragile ceasefire between the two nations shows signs of strain.

The warning, reported by Iranian state television, comes a day after the United States targeted two Iranian oil tankers, raising questions about the stability of the month-old ceasefire the US maintains is still in effect.

The US military stated the tankers were attempting to bypass its blockade of Iranian ports.

In a separate statement, Brigadier General Seyyed Majid Mousavi, commander of the Islamic Revolutionary Guard Corps (IRGC) Aerospace Force, declared that Iran’s advanced missiles and drones are fully prepared to strike US targets and enemy vessels across the Persian Gulf, awaiting only the order to fire.

“The missiles and aerospace drones are locked on the enemy, and we are waiting for the firing order,” he said on social media Saturday evening.

The announcement follows a series of recent confrontations in the region.

After US forces conducted strikes on Iranian vessels near Jask, the IRGC navy reportedly executed a swift counterattack using anti-ship ballistic missiles, cruise missiles, and high-explosive drones. According to Iranian sources, the strikes inflicted substantial damage on US assets, forcing the vessels to retreat.