An Iranian oil tanker came under attack by eight pirate boats, but the vessel was rescued due to the timely action of the Iranian Navy warships, the Navy's Public Relations Office reported on Saturday.
The Iranian vessel was then escorted to a safe zone by the Iranian fleet.
The Iranian Navy has been conducting anti-piracy patrols in the Gulf of Aden since November 2008, when Somali raiders hijacked the Iranian-chartered cargo ship, MV Delight, off the coast of Yemen.
According to UN Security Council resolutions, different countries can send their warships to the Gulf of Aden and coastal waters of Somalia against the pirates and even with prior notice to Somali government enter the territorial waters of that country in pursuit of Somali sea pirates.
The Gulf of Aden - which links the Indian Ocean with the Suez Canal and the Mediterranean Sea - is an important energy corridor, particularly because Persian Gulf oil is shipped to the West via the Suez Canal.