DURBAN - Power has been restored to most parts of Durban.
On Tuesday night, about half of the city was plunged into darkness following a major disruption at the Klaarwater substation.
READ: Klaarwater substation explosion causes Durban power outage
Ethekwini's head of electricity Maxwell Mthembu explains.
"What happened is that we had a flashover that took over at our Klaarwater substation. It took one line down," he said.
"It caused a big bang and something that looked like fire. We're still investigating the cause of the line falling down on the ground."