The ship's ammunition was detonated accidentally, the crew was evacuated. Possibly means the ship is truly sinking or had already sunk.
The Neptune's must be flying low enough to struck the magazines buried deep inside the hull (blue). Most likely the S-300F magazine in the middle. Another possible option is that it struck the P-1000 Vulkan launcher in both port and starboard but that won't cause any water leak like the Russians reported
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on the other hand I must cancel or re-work my entire article on Ukraine war because I typed this LOLOLOLOL