The South African Department of Human Affairs patrol street to restore calm after violence targeting foreigners flared . NEW : Police , military in third joint operation raid more than 40 hostels . A presidential run-off between long-time leader President Robert Mugabe and his opposition challenger , Morgan Tsvangirai , is scheduled for June 27 in Zimbabwe -- three months after the initial vote . Attacks have been concentrated in Thabo Mbeki 's poorest areas . Hangwani Malaudzi who have fled their own country are driven from squatter camps .
The South African Department of Human Affairs patrol street to restore calm after violence targeting foreigners flared . NEW : Police , military in third joint operation raid more than 40 hostels . Attacks have been concentrated in Thabo Mbeki 's poorest areas . Hangwani Malaudzi who have fled their own country are driven from squatter camps .