In December 1959, the South African government announced that it would forcibly relocate all residents of Old Location, a black neighbourhood located near Windhoek's city center, in accordance with apartheid legislation. SWANU responded by organising mass demonstrations and a bus boycott on 10 December, and in the ensuing confrontation South African police opened fire, killing eleven protestors. In the wake of the Old Location incident, the OPO split from SWANU, citing differences with the organisation's Herero leadership, then petitioning UN delegates in New York City. As the UN and potential foreign supporters reacted sensitively to any implications of tribalism and had favoured SWANU for its claim to represent the South West African people as a whole, the OPO was likewise rebranded the South West African People's Organisation. It later opened its ranks to all South West Africans sympathetic to its aims.