South African Immigrants Form Militias

The title of the article says it all: "South Africa descends towards a new apartheid: Immigrants create armed gangs and patrol the streets in the face of violence from black locals aimed at foreigners." The story begins:

Immigrants wielding machetes have clashed with police as they hunt for locals that attacked foreign shop owners as violence continues to spread across South Africa. 

Police fired rubber bullets and a stun grenade today to disperse a gang of immigrants who had armed themselves with machetes in a run-down district in Johannesburg.  

The country has been hit by a wave of violence against immigrants in the past fortnight. 

The foreigners have complained about a lack of protection and some have started to arm themselves and fight back.