South Africa's President Cyril Ramaphosa has spoken out against the harassment of migrants in the country.

He compared the behaviour of vigilante groups to the apartheid regime's treatment of black South Africans.

Frequent demonstrations have been held in recent months against undocumented migrants who are often accused of taking jobs from locals and committing crime.

Last week, a Zimbabwean man was killed and burnt in an apparent mob attack in a Johannesburg township.

It followed the murder of seven South Africans in the same area.

Mr Ramaphosa criticised the fact that vigilante groups have been stopping people on the streets and forcing them to produce identification to verify their immigration status.