FIFA acting secretary general Markus Kattner has been sacked for paying himself bonuses worth millions of pounds.
The 45-year-old German took over as acting general secretary after Jerome Valcke was sacked for irregularities.
No other current FIFA directors are believed to be involved.
The dismissal is not connected to the payment made to Michel Platini by former president Sepp Blatter in 2011.
Kattner joined FIFA in 2003 as director of finance, becoming deputy secretary general in 2007.