SA's 'culture of unrest'
Political analyst Professor Somadoda Fikeni says the unrest in Tshwane should not be looked at in isolation to other violent events which have occurred in South Africa.
He says: "It's a trend and rising political culture where force and violence is becoming a means of imposing one's decision."
Violent protests broke out in the region on Monday night, spreading rapidly and leading to various main roads being barricaded.
At least 20 buses were torched. The Metrorail train service was also suspended in Kalafong, where protesters blocked the railway tracks with stones.
It comes after the ANC on Monday announced former Public Works minister Thoko Didiza as the party's Tshwane mayoral candidate for the upcoming election.
Tshwane protestors have threatened to shut down the area.
They're demanding Kgosientso "Sputla" Ramokgopa be named as the ANC's Tshwane mayoral candidate for the local government election on 3 August.