The Hawks would not confirm a news report on Friday that a warrant had been issued for the arrest of expelled ANC Youth League leader Julius Malema.
"The Hawks don't issue warrants, so we don't comment on that," said spokesman McIntosh Polela.
Asked if the unit was planning to arrest Malema, he said: "Even if we were planning to arrest him, we won't tell you."
Police Minister Nathi Mthethwa's spokesman, Zweli Mnisi, referred queries to provincial police.
Gauteng police spokesman, Brigadier Neville Malila, said he knew nothing about an arrest warrant for Malema.
The City Press reported that the warrant was issued on Friday morning.
Malema was due to appear in a Pretoria or Polokwane court next week on charges of money laundering, corruption and fraud, it said.
The matter related to his Ratanang Family Trust and its shareholding in On-Point Engineering, a company that had allegedly made millions from Limpopo government tenders.
The publication said it was unclear whether Malema would be jailed before appearing in court.