[PIF]

There is only one user of Kalibre missiles which are not mysterious.

[Mariner]

“There is only one user of Kalibre missiles which are not mysterious.”

Who says they were Kalibre?

[ought-six]

“There is only one user of Kalibre missiles which are not mysterious.”

The Kalibr is Russian (the NATO designation of that missile is Sizzler).

I suppose Russia could have sold some to some bad actors. But, as of now, the finger points to Russia or one of its proxies.