Complex sentence: At 0645 hrs, fighter jets were scrambled which strafed the vessel before it was identified as Pakistan Navy's own frigate PNS Zulfiqar, which suffered casualties and damage as a result of this friendly fire.
Split into simpler sentences: At 0645 hrs, fighter jets were scrambled which strafed the vessel before it was identified as Pakistan Navy's own frigate PNS Zulfiqar. The Ship suffered casualties and damage as a result of this friendly fire.