A local man gestures with a stick outside a hostel during the anti-immigrant violence in Johannesburg, April 17, 2015. South Africa sought diplomatic support from countries across the continent on Friday to defeat the "demon" of anti-immigrant violence in which at least four people have been killed over the past fortnight. Foreign nationals have complained that the South African police are failing to protect them, raising the prospect of a row between Pretoria and its neighbours, as well as stirring hostility to South Africans working abroad. REUTERS/Siphiwe Sibeko TPX IMAGES OF THE DAY

South African men run from police as rioting and looting was quelled during anti-foreigner violence in Durban April 14, 2015. The wave of anti-foreigner violence that has killed four people in and around the South African city of Durban in recent days, spread to the town center on Tuesday, local media reported, with police firing rubber bullets to disperse angry crowds. REUTERS/Rogan Ward 

Foreign men from Malawi queue to board buses from a camp for those affected by anti-immigrant violence in Chatsworth north of Durban, April 18, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Rogan Ward 

A foreign man bathes on a sports field adjacent to a camp for those affected by anti-immigrant violence in Chatsworth north of Durban, April 21, 2015. South Africa deployed the army on Tuesday in "volatile areas" to curb a wave of anti-immigrant violence that has killed at least seven people this month, the defence minister said. The latest wave of anti-immigrant attacks began almost three weeks ago in parts of the coastal city of Durban in Kwa-Zulu Natal and quickly spread to Johannesburg, South Africa's commercial capital. REUTERS/Rogan Ward 

Police officers gesture after firing rubber bullets to disperse African immigrants who were carrying machetes in Johannesburg, April 17, 2015. South African police fired rubber bullets and a stun grenade on Friday to disperse a gang of African immigrants who had armed themselves with machetes in a run-down district of east Johannesburg, a Reuters photographer said. South Africa has been hit by a wave of violence against African and other immigrants in the last two weeks. The foreigners have complained about a lack of protection and some have started to arm themselves. REUTERS/Siphiwe Sibeko 

A volunteer hands out food to foreign nationals who fled anti-immigrant violence, at a temporal refuge camp in Primrose, outside Johannesburg April 18, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Siphiwe Sibeko 

A foreign man feeds his young child in Isipingo, south of Durban, April 13, 2015. Several hundred foreign nationals have sought refuge in the tents after xenophobia driven violence forced them to flee their homes and businesses. REUTERS/Rogan Ward TPX IMAGES OF THE DAY

A child from Zimbabwe waits for a bus to depart for Harare, from a camp for those affected by anti-immigrant violence in Chatsworth, north of Durban April 19, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Rogan Ward TPX IMAGES OF THE DAY

Foreign national immigrants displaced by anti-foreigner violence chat over a fence at a temporary refugee camp in Primrose outside Johannesburg, April 18, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Siphiwe Sibeko

A foreign woman from Zimbabwe fetches dry clothes from the fence at a camp set up to house those affected by anti-immigrant violence in Chatsworth, north of Durban, April 17, 2015. South Africa sought diplomatic support from countries across the continent on Friday to defeat the "demon" of anti-immigrant violence in which at least four people have been killed over the past fortnight. Foreign nationals have complained that the South African police are failing to protect them, raising the prospect of a row between Pretoria and its neighbours, as well as stirring hostility to South Africans working abroad. REUTERS/Rogan Ward TPX IMAGES OF THE DAY

Men from Zimbabwe queue to register with officials in a bid to return home at a camp for those affected by anti-immigrant violence in Chatsworth, north of Durban, April 18, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Rogan Ward TPX IMAGES OF THE DAY

Foreigners from Zimbabwe carry their bags before boarding a bus home, from a camp for those affected by anti-immigrant violence in Chatsworth, north of Durban April 19, 2015. South Africa's President Jacob Zuma on Saturday canceled a state visit to Indonesia to deal with a wave of anti-immigrant violence at home and promised peace to those who wished to remain in Africa's most advanced economy. The unrest which began in the port city Durban two weeks ago and spread to Johannesburg, Africa's economic hub, appeared to have died down on Saturday as police patrolled trouble spots. REUTERS/Rogan Ward 

Children play amongst the remnants of a fridge in front of a looted store which is owned by foreigners in KwaMashu, north of Durban, April 13, 2015. Several hundred foreign nationals have fled their homes and businesses from xenophobia driven violence. REUTERS/Rogan Ward 

A police officer (L) looks on as a foreign nationals clear items from their shop for fear of attacks in Primrose outside Johannesburg April 16, 2015. Immigrants in downtown Johannesburg, South Africa's biggest commercial city, shut their shops as a wave of anti-foreigner violence that has killed four people near the city of Durban threatened to spread, police said. REUTERS/Siphiwe Sibeko 

Locals gesture outside a hostel during anti-immigrant related violence in Johannesburg, April 17, 2015. South Africa sought diplomatic support from countries across the continent on Friday to defeat the "demon" of anti-immigrant violence in which at least four people have been killed over the past fortnight. Foreign nationals have complained that the South African police are failing to protect them, raising the prospect of a row between Pretoria and its neighbours, as well as stirring hostility to South Africans working abroad. REUTERS/Siphiwe Sibeko 

Police officers fire rubber bullets as they disperse African immigrants who are carrying machetes in Johannesburg, April 17, 2015. South African police fired rubber bullets and a stun grenade on Friday to disperse a gang of African immigrants who had armed themselves with machetes in a run-down district of east Johannesburg, a Reuters photographer said. South Africa has been hit by a wave of violence against African and other immigrants in the last two weeks. The foreigners have complained about a lack of protection and some have started to arm themselves. REUTERS/Siphiwe Sibeko 

A group of foreign nationals threaten to defend themselves as police get between them and South Africans after a peace march in Durban, April 16, 2015. At least four people have been killed in a wave of anti-immigrant violence that started two weeks ago in Durban, a key port on South Africa's Indian Ocean coast. REUTERS/Rogan Ward 

Police encourage a group of foreign nationals to move back to their homes after a peace march in Durban, April 16, 2015. At least four people have been killed in a wave of anti-immigrant violence that started two weeks ago in Durban, a key port on South Africa's Indian Ocean coast. REUTERS/Rogan Ward 

People look on as police disperse a group of foreign nationals after a peace march in Durban, April 16, 2015. At least four people have been killed in a wave of anti-immigrant violence that started two weeks ago in Durban, a key port on South Africa's Indian Ocean coast. REUTERS/Rogan Ward 

People participate in a peace march after anti-immigrant violence flared in Durban, April 16, 2015. At least four people have been killed in a wave of anti-immigrant violence that started two weeks ago in Durban, a key port on South Africa's Indian Ocean coast. REUTERS/Rogan Ward