TEHRAN - Iran's Navy on Monday "successfully" test-fired state-of-the-art torpedoes by hitting and destroying targets during the fourth day of its naval drill, Press TV reported.

Iranian Commander Rear Admiral Amir Rastegari said "following successful coastal defense and the retreat of the (hypothetical) enemy's vessels," Iranian sub-surface vessels ambushed the mock enemy forces and destroyed them with advanced torpedoes.

He said that Iran's surface units chased the enemy's vessels while launching heavy missile attacks against the hostile forces, according to the report.

On Friday, Iranian Navy launched a six-day massive drill dubbed Velayat 91, or Guardianship 91, in its southern waters.