Durban - Copper theft at three mini sub-stations in Pietermaritzburg has left two city engineers and an electrician in critical condition in hospital.
Police are investigating the theft believed to have been carried out by a gang of “highly skilled” criminals.
The cable theft plunged the city into darkness on Friday.
Security around all the city’s sub-stations has now been increased to ensure no further disruptions.
Two city engineers and an electrician were seriously injured when electrical switchgear exploded at the Mason’s Mill sub-station, in the Table Mountain area.