FIFA says it is investigating an international double-header played in Turkey for match-fixing.
Suspicions about the integrity of the matches were raised because all seven goals in the Estonia-Bulgaria and Latvia-Bolivia friendlies last week were scored from penalties.
FIFA says it has asked for match reports from each of the national federations.
The investigation is expected to focus on an agency which arranged the back-to-back games in Antalya, and the Hungarian match officials.
Bolivian officials have cancelled a scheduled return visit to Turkey next month for matches against Finland and Bulgaria.