An interesting line from the article I had overlooked:

"The fraud mechanism belonged to the aforementioned Italian company and to two other foreign companies, to which Italian promoters referred. Three of them were stopped by the Financiers at the Orio al Serio Airport (BG) while they carried well 117,840 Euros, the result of the sale of training packages and "OneCoin coin"

Given the fact a OneCoin event in Verona has just concluded, it is not unreasonable to conclude those arrested were likely to be include some of the OneCoin insiders in attendance such as Simon Le and Habib Zahid