A rape case has been opened against a prominent ANC leader in the Waterberg region of Limpopo by a 33-year-old woman.

Police said they were investigating the matter and the man has not yet been arrested.

Police spokesman Lieutenant-Colonel Malesela Ledwaba said the complainant had not been cooperating with the investigating officer, making it difficult for them to conduct proper investigations.

"As the police we can confirm that a woman has opened a case of rape against an ANC politician, but there are a lot of question marks," said Ledwaba on Sunday.

He said the woman alleged the incident happened at a lodge in Mokopane on April 6, and that she opened a case with the police in Polokwane a day later. "The victim also gave us a Meadowlands [Soweto] address as her place of residence but we went there to find that she was not living there. We further requested her to meet us at a police station in that area but she would not cooperate. Her actions frustrate our investigations.

"There is nothing we can do to proceed with the case until such time that we meet with the complainant to get more details," he said.