German Prisoner Of War Camps In Vels Or Wels Siberia

[Arminius]

Hi folks
I was wondering if anyone knows anything about prisoner of war camps in Siberia. I have recentley found out that my wifes grandfather is actually a German Prisoner who was in this camp in WW2.
Looking on Google only gives you page upon page of nonsensical shite as usual.
I would be very grateful for any information because we can maybe put it down to a few hundred people or so
Thanks for anyones help