There was a similar topic prolly 6 months back about russia possibly using one. Some radiation was detected a few weeks later.

But its likely one of those bunker busters that uses a small tactical nuke and most of the radiation gets contained to the ground.

I didnt know it but apparently they can adjust the yield of the explosion so it can either make a very small nuclear bang, or a very large one. This way they just carry one missile around instead of different types according to the mission.

I wonder if someone fucked up the yield on this one. Because it certainly has that iconic nuclear cloud to it.