In the year after the 1976 Soweto student uprising, many more people were detained by the South African police and brutally tortured. On 18 August 1977, as the number of people who died in detention continued to rise, a poster parade around Trafalgar Square was organised by Southern Africa the Imprisoned Society (SATIS). The parade was attended by over 300 people and successfully publicised the plight of those interned in detention centres and gaols in South Africa.