Prime Minister Viktor Orbán has called for launching an investigation into "corrupt funding from Brussels".
In an interview with public radio on Friday, PM Orbán said "corrupt dollars" had arrived in Hungary from Brussels, as well as from the US, in order "to influence the Hungarian public". "That must also be cleared up."
He insisted that Brussels had paid people in Hungary to represent "not the Hungarian government or people, or public opinion shaped in Hungarian referendums, but to push the will of Brussels through".
"This is more outrageous than the matter with the US," PM Orbán said, adding that the EU was using member states' money. "They sent back some of the money we paid to influence and change the stance of the Hungarian government, for example on the matter of utility price reductions."
Legislation to prevent that from happening again is expected to be adopted by Easter, PM Orbán said.
The third monies to be investigated are "the coffers of the Soros network", he said.