At least 19 blacks were shot or hacked to death in a squatter camp massacre near Johannesburg, taking the weekend death toll in a flare-up of political violence to 35, police said Monday.

Spokeswoman Ida van Zweel said the bodies were found scattered all over Zonkwezizwe camp, scene in the past three weeks of fighting between Zulu migrant workers and mainly Xhosa supporters of Nelson Mandela's African National Congress.