Johannesburg. Protesters have told all undocumented foreigners to leave South Africa by Tuesday, ahead of anti-immigrant rallies that many fear will turn violent.

Thousands of foreign Africans are heading home or huddling together in camps for fear of being attacked — though the group organising the protests, March and March, says it is peaceful.

Below are details of what the protesters are complaining about, how widespread their views are ​and how they stack up against reality.

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