South Africa has announced a review of its National Intelligence Agency, following the suspension last week of three top officials.
Minister Ronnie Kasrils ordered a review
The three are accused of spying on Saki Macozoma, a businessman and close associate of President Thabo Mbeki.
The row in the NIA has been linked to a split within the governing ANC party between Mr Mbeki and his sacked deputy, Jacob Zuma.
Mr Zuma was fired in June, and later charged with corruption.
Announcing the review on Wednesday, Intelligence Minister Ronnie Kasrils said he would look at "interventions necessary to prevent any future abuses occurring in the intelligence community".
Last week Mr Kasrils suspended NIA director general Billy Masethla and his deputy and general manager, after businessman Saki Macozoma complained he had come under "blatant" surveillance.
Mr Macozoma, a member of the ANC National Executive Committee, is seen as part of Mr Mbeki's inner circle, and could play a key role in choosing the president's successor.
Mr Zuma was previously seen as the natural successor to Mr Mbeki, and his supporters say the corruption charges against him are part of a plot by his political enemies.
On Monday, Mr Kasrils warned the public about hoax e-mails, purportedly circulated by the NIA, which suggested Mr Mbeki, Mr Macozoma and other allies had plotted against Mr Zuma.
In another development, Mr Kasrils denied having authorised surveillance of ANC Youth League president Fikile Mbalula - a prominent Zuma supporter - following a complaint by Mr Mbalula.