The two former Portsmouth players will play no part in Ghana's must-win last group match against Portugal in Brasilia on Thursday. Boateng "verbally abused" coach Kwesi Appiah, said the GFA.
"The GFA has approved coach Kwesi Appiah's decision to suspend Kevin-Prince Boateng indefinitely from the Black Stars. The decision was taken following Boateng's vulgar verbal insults targeted at coach Kwesi Appiah during the team's training session in Maceio this week. Boateng has since showed no remorse for his actions which has resulted in the decision."
The statement said both Muntari and Boateng's accreditation for the World Cup has been withdrawn "with immediate effect".