Russian complicity in North Korean abuses?

I'd like to see some kind of confirmation of this, but Forbes is supposed to be reliable. If North Koreans are (or were) being forced to work in Russia under these gulag conditions, it's a horrible indictment of a country that considers itself part of Europe.

Of course, considering the horrible conditions in North Korea, perhaps its better that the logging camps continue. Apparently, most of those working for little food, in minimal clothing, in the subzero temperatures are (or, were initially) volunteers. I'm sure none of them were properly informed of the choice they were making, but at the same time, it might actually be better than being in North Korea.