President Jacob Zuma on Tuesday said he was looking into "allegations of interference" against State Security Minister Bongani Bongo, who stands accused of bribing the evidence leader of  the parliamentary inquiry into State capture claims at South Africa's power utility, Eskom.

"The Presidency wishes to confirm that President Jacob Zuma met with the Speaker of the National Assembly, Ms Baleka Mbete, who briefed him on the allegations of interference by the Minister of State Security, Mr Bongani Bongo, in the Parliamentary Enquiry by the Public Enterprises Committee on the affairs of Eskom," Zuma's office said.

"President Zuma is attending to the matter."

An affidavit submitted by senior parliamentary law advisor, Advocate Ntuthuzelo Vanara, to the national legislature suggests Bongo had approached him with a bribe to step down as inquiry evidence leader.