After the Euro-Maiden protests and the rebellion popped off against Yanukovych's government the protestors and rebels were armed with shields and clubs, pellet rifles, Molotov cocktails, gas pistols converted to fire live ammo, air soft guns, occasionally pistols from God knows where, side-by-side and over-and-under shotguns, civilian and former military bolt action rifles such as sporterized Mauser's and Mosin's and occasionally scavenged/stolen AKM's and AK-74's.
So in the first stages of the conflict in the Ukraine both sides were just happy to have an actual semi-auto rifle that worked and was purpose-made for war.
http://www.forgottenweapons.com/guns-in-ukraine/
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Pro-Ukraine Militia
Pro-Russian DPR paramilitary soldiers
They've caught up now though, so they're actually doing something else with the SKS's and other outdated rifles.
Be prepared to cry a bit...(skip to 3:22 if you want to see what I mean)...
I've kept up with what's been going on with Ukraine since the beginning of the protests and while I'm sure that many of the SKS's are being hidden away somewhere, the ones that the Ukrainian government has collected are being melted down for scrap to satisfy the EU/NATO in exchange for military and humanitarian aid.
I haven't seen anything but an AK for awhile now.