Marius Vizer, the head of SportAccord, the association representing international sports federations, accused Thomas Bach, the International Olympic Committee president, of blocking federations’ plans for multisport events, interfering in the autonomy of the organizations and excluding leaders from voting on Olympic host cities.
Bach responded that Vizer’s views were not representative of SportAccord’s member federations and that the I.O.C. had an “open dialogue” with the groups.
A version of this brief appears in print on April 21, 2015, on page B12 of the New York edition with the headline: I.O.C. President Criticized. Order Reprints| Today's Paper|Subscribe