Cricket South Africa (CSA) says it is investigating potentially fraudulent activities by an international syndicate attempting to corrupt the domestic game.
CSA's Anti-Corruption and Security Unit is being supported by the International Cricket Council (ICC) while South African police could also get involved.
"As is the standard practice with the ICC, neither CSA nor the ICC will make any further comment in respect of ongoing investigations," CSA said in a statement on Friday.
South Africa's domestic T20 competition started at the weekend and has attracted top names from the cricketing world, including former England batsman Kevin Pietersen.
"This is a timely reminder that we can never drop our guard in protecting the integrity of the game at every level," CSA chief executive officer Haroon Lorgat said.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"We have an effective partnership with the South African Cricketers' Association to ensure that all our players, support staff and administrators are well educated about the nefarious activities of corrupt people and are aware of the consequences of falling victim to any shady approaches."
Lorgat said CSA's attitude towards corruption would always be one of zero tolerance.
"We will relentlessly pursue under our code and the law of the land any persons we believe to be involved in corrupting the game and, with assistance from the Police, we will also seek criminal prosecution," he added.
