Several coal transporting trucks blocked highways in South Africa’s capital on Monday to protest against the country’s renewable power program after President Jacob Zuma showed support for the sector in speech to parliament last month, Reuters reported.

Organized by Coal Transportation Forum, the strike came as a movement against contracting Independent Power Producers (IPPs) which would lead to job losses, according to Transportation forum’s spokeswoman Mary Phali, informed IOL. In this sense, Phali stated: “We are against the signing of the independent power producer program,” said Mary Phadi. “All the mines that are producing coal are going to be affected and the power stations will be forced to shut down.”

Job cuts are a thorny issue in Africa’s most industrialized country where the unemployment rate is almost 27%, and are a big concern for companies faced with labor disputes.