Mladic, a former general in the Bosnian Army, is wanted by the United Nations war crimes tribunal on charges of committing atrocities during the 1992-1995 war in Bosnia.
Radio station B-92 said pension payments had gone to a bank account in his name. It said Mladic never withdrew money from the account but members of his family and two officers of the army of Serbia and Montenegro had the power of attorney to withdraw his pension.
The radio said authorities in Belgrade have now canceled the payments.
(AP/dpa)