Kosovo prosecutors on Friday said they are probing suspicions published in French media about football match-fixing in a network that saw four people arrested in France in recent days.

In what looks like the biggest fixing affairs since Kosovo was admitted to Europe’s football governing body, UEFA, in 2016, French newspaper Le Parisien reported on Thursday that nine persons, including four Kosovo citizens, have been charged for involvement in a network of corruption and rigged bets on football matches in the Kosovo championship.

Bets are suspected to have been made on French betting sites.

Hours after the news broke out, the Prishtina prosecution announced that it is looking into the suspicions.

“Prihstina Basic Prosecution … is addressing these cases, but due to the integrity of the process, we cannot give more details,” the Prosecution said on Friday.

Kosovo’s football governing body, FFK, said it has immediately taken “necessary measures” to investigate and address the suspicions to relevant institutions.

A federation official dealing with competition integrity has been called for a report and UEFA has also been informed.