Bitcoin Fraud with Greek victims

Greek Police has tracked down a fraud involving three bitcoin exchange companies. The case was initiated after claims by the victims of being defraude by these EU based companies. This is the only information available at the moment if you know more please leave a comment. The people that are involved have not been tracked down.
Updated addition:
The alleged fraudsters are from Finland and used servers based in the UK in Quebec (Canada) and in India.

Sourceσ in Greek:
http://news247.gr/eidiseis/koinonia/eglima/eksixniasthke-h-prwth-apath-me-bitcoin-sthn-ellada.4555352.html

Official greek police site: (For some reason not cited in original greek post)
http://www.astynomia.gr/index.php?option=ozo_content&lang=%27..%27&perform=view&id=69563&Itemid=1851&lang=