On the night of 8 December, in the second operation, Operation Python, the "Osa"-class boat "Vinash", escorted by two frigates, fired missiles at Karachi in a six-minute action. One missile hit an oil tank, destroying it. The British ship "Harmattan" was sunk, the Panamanian ship "Gulfstar" was set on fire. The Pakistan Navy fleet tanker, PNS "Dacca", was badly damaged and only survived because the commanding officer, Captain. S.Q. Raza S.J. P.N., ordered the release of steam in the pipes that prevented the fire reaching the tanks. Though anti-aircraft guns opened fire in response, they only managed to hit a Greek ship, "Zoë", that was moored in the port and consequently sank.