Former Fifa vice-president Jack Warner has severely criticised the governing body's president Sepp Blatter.
Trinidadian Warner, who resigned from his position at Fifa in June, accused Blatter of "megalomania, covert racism and discrimination."
He added that he would reveal more next Wednesday about other issues, including television rights.
Blatter after being widely condemned for suggesting racism could be settled by a handshake.
Prior to his resignation, Warner had been suspended pending an investigation into bribery allegations.
Fifa executive committee member Chuck Blazer, the general secretary of Concacaf - the Confederation of North, Central American and Caribbean Association Football - had that Asian Football Confederation boss Mohammed Bin Hammam colluded with Warner in a plan to pay £600,000 in bribes to Caribbean associations.
Warner's statement came following a meeting between Fifa and Caribbean Football Union officials about the future of football governance in the Caribbean.
The statement berating Blatter continued: "The Fifa president must not be allowed to continue the demeaning of people of colour without someone raising a voice to tell him enough is enough."
"The Fifa president cannot continue faux pas after faux pas with impunity especially when all his wrongdoings are along the same vector of megalomania, covert racism and discrimination."
"The time has come to break the silence. One must no longer accept silence as affirming the wrong being perpetuated by the Fifa. In this regard I have decided to break my silence."