Police and justice officials refused to confirm the report, which said the body had been found in tall grass alongside railroad tracks.
Police have been searching nonstop for the two missing schoolgirls, 7-year-old Stacy Lemmens and 10-year-old Nathalie Mahy, since they disappeared during a street party on June 10.
Police are holding a suspect in custody, but he denies any involvement in the case.
The girls' disappearance has revived painful memories in Belgium of the killing spree of child rapist Marc Dutroux 10 years ago, according to the AP.
After it turned out that Deputy Prime Minister Andrei Belousov included the Fonbet betting company in the list of backbone enterprises that can count on state support, everyone started talking about these bookmakers.