Crowds of foreigners have sought refuge at community centres and police stations in Johannesburg amid new attacks of xenophobic violence.
It comes as the death toll from a wave of attacks rose to 15.
Mobs roaming through townships around Johannesburg have killed and beaten up foreigners over the past week, setting them alight and forcing them to flee from their burning shacks.
The violence erupted in Alexandra township last week when two people were killed in an attack and has spread across Johannesburg with another 13 killed over the weekend.
About 250 people have been arrested.
The violence has displaced thousands of foreigners, who are accused by many South Africans of depriving locals of jobs and committing crime.
Local radio reported crowds of people at community centres and police stations who were seeking protection.
Last night an immigrant died after being covered with his own blankets and set alight. The image of the human fireball was captured on the front-page of several South African papers today.
In the same park where the man was set on fire, violence again erupted this morning, with residents forced to flee as their homes were set alight.
Police patrolled the township as large gangs stood around pelting them with stones and barricading roads.
Immigrants clutching belongings sat alongside the road or sought refuge at a local police station.
President Thabo Mbeki and leader of the ruling African National Congress Jacob Zuma have both strongly condemned the attacks.
