Thousands of protesters torched two buses and damaged four vehicles during a strike at the Medupi power station in Lephalale, Limpopo, on Tuesday morning, police said.
“Residents alleged that Eskom is employing foreign-experienced boilermakers and not considering the residents for the positions,” said Brigadier Hangwani Mulaudzi.
Two buses were set alight and two police vehicles and two cars were damaged during the protest, he said.
Police had deployed members of the public order policing unit to stabilise the situation.
Mulaudzi said police condemned violence by people who did not want to engage in dialogue when they had problems.
“As the police, we will not hesitate to take action against anyone who transgresses the law,” he said.
Police were monitoring the situation. No arrests had been made and no injuries had been reported.