Katusha removed from WorldTour for ethical reasons?

Team Katusha receives decision from UCI regarding its removal from WorldTour, but does not release further details

Source: http://feedproxy.google.com/~r/cyclingweeklycouk/feeds/rss/newsxml/~3/qMasSTklCNg/story01.htm

Brian G. Moore Donald J. Johns David S. Wells Edward C. Scates Donna E. Grace