PNS Muhafiz

PNS "Muhafiz" was an "Adjutant"-class minesweeper of the Pakistan Navy. It was built by the United States for transfer to Pakistan. PNS "Muhafiz" was sunk by a missile from of the Indian Navy during the Indo-Pakistani War of 1971.
PNS "Zulfiqar" (K265) of Pakistan was also damaged beyond repair by friendly fire from aircraft of the Pakistan Air Force (PAF) which mistook her for a missile boat of the Indian Navy during the same war. India also lost in this war.
Operation Trident.
During the Indo-Pakistani War of 1971, The minesweeper PNS "Muhafiz" was tasked to patrol the approaches to port of Karachi. To do so it was deployed on the inner cordon.
Late that evening on 4 December 1971, around 70 miles south of Karachi, the detected a large Pakistan Navy target, later identified as the "Muhafiz" on patrol to its north. "Veer" launched a single SS-N-2 "Styx" missile on the target, sinking "Muhafiz". It was later learned that at 23:30 the "Muhafiz" was hit by Styx missiles, and sank in the Indian Ocean at about 23:35.
Other vessels of the Indian Navy strike group sank the Pakistan Navy destroyer, and the merchant ship (carrying navy personnel and ammunition for Pakistan), and caused irreparable damage to the destroyer .