FIFA presidential candidate Prince Ali Bin Al Hussein of Jordan has asked football's world governing body to investigate an agreement between the Asian and African confederations.
Prince Ali said the timing of the agreement ahead of next month's presidential elections "looks like a blatant attempt to engineer a bloc vote."
Prince Ali is one of five candidates standing to succeed banned president Joseph Blatter at FIFA's extraordinary congress in Zurich on February 26.
Prince Ali, 40, was defeated by 79-year-old Blatter when he stood for the presidency in May. Blatter later announced he intended to stand down and has since been banned from football for eight years by FIFA's ethics committee.
The Confederation of African Football (CAF) has signed a memorandum of understanding with the Asian Football Confederation (AFC) to "strengthen, intensify co-operation and strengthen the capacity of various stakeholders in Africa and Asia" over the next four years.
Prince Ali said he had written to FIFA's ad hoc electoral committee asking it to look into the agreement.
"I am concerned that there has been an attempt to breach electoral rules in the FIFA presidential election," he said.
He added: "Questions must be asked: was this deal approved by the members of the executive committees of both the AFC and CAF and is the timing of the announcement, prior to a presidential election, acceptable?
"Now more than ever, this apparent exploitation of confederation resources shows the world that the actions of individuals must stop bringing FIFA into disrepute."
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