Neither the FA nor UEFA was made aware of a police match-fixing investigation into a Champions League game in England.
Zero-tolerance approach
It is understood UEFA is similarly unaware of an investigation into an Champions League match in England.
A Europol spokesman said he was unable to comment when asked why neither the FA nor UEFA had been informed.
UEFA confirmed it would co-operate with the investigation and stressed it had a zero-tolerance approach to match-fixing.
It added in a statement: "UEFA is aware of the statements made by Europol regarding the alleged match-fixing that has taken place in various football competitions, and expects to receive further information in the coming days.
"As part of the fight against the manipulation of matches, UEFA is already co-operating with the authorities on these serious matters as part of its zero tolerance policy towards match-fixing in our sport.
"Once the details of these investigations are in UEFA's hands, then they will be reviewed by the appropriate disciplinary bodies in order that the necessary measures are taken."
Tougher sentences
FIFA's head of security Ralf Mutschke said prison sentences for fixing needed to be tougher.
He said: "In football, a national association can sanction a member of the football family if they are found guilty of contravening the legal, football framework.
"FIFA's disciplinary code provides the opportunity to extend those sanctions, and impose a life ban.
"But for people outside of football, currently the custodial sentences imposed are too weak, and offer little to deter someone from getting involved in match-fixing."
