Turkish prosecutors have detained 17 current and former football club officials as part of a sweeping match-betting investigation into allegations that they placed wagers against their own teams or on in-game outcomes while serving in management positions.

The Istanbul Chief Public Prosecutor's Office said the investigation analyzed betting records from licensed sportsbooks operating in Türkiye between 2020 and 2026.

Authorities cross-referenced those records with the tenure of club executives to determine whether officials had placed bets on matches involving their own clubs.

According to prosecutors, investigators identified 19 club officials who allegedly wagered on matches involving their teams while serving as executives.

The suspected bets included wagers favoring opposing teams, over-under goal markets and player-related betting markets.