In the latest bust this week, 197 kilos of cocaine were found in shampoo bottles destined for Australia.
Earlier this month, customs officials also caught a man trying to fly to Dubai with R7 million rand of undeclared currency.
On Monday, Police Minister Fikile Mbalula met with State Security Minister David Mahlobo and other officials on Monday to devise a new security plan for the airport.
The minister says they’re ready to respond with force by "outgunning" suspects who've taken advantage of a slack security system.