Eighteen individuals are currently detained in Turkey as part of an investigation into referees suspected of betting on football matches, the Istanbul prosecutors office said on Friday.
Warrants for the arrest of 21 individuals have been issued, including 17 referees and the president of a first-division club, although the prosecutors office did not clarify how many of the 18 individuals being interrogated are referees.
The probe centres on allegations of match manipulation and misuse of authority.