 The US Navy hit the Iranian Navy frigate with three Harpoon missiles, four AGM-123 Skipper rocket-propelled bombs, a Walleye TV-guided bomb, and several "iron bombs".Despite the large number of munitions and successful hits, "Sahand" did not sink until fire reached her ammunition magazine, causing it to detonate, sinking the vessel.In the same engagement, American warships fired three Standard missiles at an Iranian Navy corvette.