[Tee tiong huat]

As Kyiv Post sought for further details: Ukraine Defense Ministry said, Neptune manufacturer Ukroboronprom, both declined to comment. They citing state 
of Deputy Defense Minister Lt. Gen. Ivan Havrylyuk confirmed military scientists had begun work on a new modification, dubbed “Long Neptune.” He told Army inform that missile’s specifications and progress remain classified.

Kyiv Post sought Deputy Defense Minister Lt. Gen. Ivan Havrylyuk to confirmed. But military scientists had begun to work in progress on the new modification, dubbed “Long Neptune.”

Hoot .... Ahh.

The missile’s specifications is in progress remain classified.
https://www.kyivpost.com/post/49096

Overall, Ukrainians launched their first demonstrative strike with Long Neptune missiles, inflicting severe damage to one of the largest Russian oil refineries, which now pose an even greater risk to the most critical Russian military infrastructure. President Zelensky also announced that the Ukrainian military-industrial complex will produce one hundred thousand long-range munitions of various types, including the Long Neptune cruise missiles. This even further underscores the massive achievement of Ukraine, as Ukrainians will now be able to strike valuable and critical Russian assets deep in the rear, with domestically produced cruise missiles, on a massive scale never seen before.
https://youtu.be/nDdYL0yMK1M?si=4NcV-7Y6ExHbTqgk