Security services company G4S says the recent surge in cash-in-transit heists is unacceptable after it was targeted five times in one day.
On Monday, there were several cash-transit-heists reported across the country.
G4S confirmed to News24 on Tuesday that its security guards were attacked in four separate incidents while performing cash collection services on Monday.
The attacks took place in eMalahleni in Mpumalanga, East London and Mthatha in the Eastern Cape and Krugersdorp, west of Gauteng.
The company also confirmed an attack on one of its armoured vehicles in Vanderbijlpark on the same day.
The robbers used explosives in an attempt to gain access to the vehicle but failed and fled the scene empty handed.
The company said that while their armoured vehicles were not involved in four of the incidents, their staff members were attacked.
In the Mthatha attack, a G4S security guard was shot multiple times in the chest. He is in a stable condition in hospital.