Biko died in custody as a result of police brutality on 12 September 1977.
“To mark this sad episode in the history of the South African struggle for liberation, President Jacob Zuma will visit Kgosi Mampuru Correctional Centre [today] and lay a wreath at the cell in which Mr Biko died,” the presidency said.
Biko died in a police cell at the then Pretoria Central Prison (now Kgosi Mampuru) following his arrest in August 1977.
He was savagely beaten by apartheid security police while in police detention in Port Elizabeth and sustained serious injuries, including brain damage. He was kept naked and chained.
Despite his injuries, he was moved to Pretoria, where he died.