The following lists events that happened during 1981 in South Africa. Incumbents State President: Marais Viljoen. Prime Minister: P.W. Botha. Chief Justice: Frans Lourens Herman Rumpff. Events January 25 – The largest part of the town Laingsburg is swept away within minutes by one of the strongest floods ever experienced in the Great Karoo. 30 – The South African Defence Force launches Operation Beanbag and raids a suspected Umkhonto we Sizwe safe area in the suburb of Matola, Maputo, Mozambique, killing 12 to 24 people. The numbers reported killed vary. February 9 – Tuks FM (107.2FM), the University of Pretoria's campus radio station, is established. Two people are injured when a bomb explodes in a Durban shopping centre. April 1 – The South African Railways and Harbours changes its name to the South African Transport Services. 14 – A section of railway line between Richards Bay and Vryheid is destroyed by Umkhonto we Sizwe and coal trucks are derailed. 16 – Bishop Desmond Tutu is arrested and his passport is confiscated. 21 – Limpet mines explode and destroy two transformers at a sub-station in Durban. May 6 – The railway in the Hoedspruit area is damaged. 14 – The United Nations General Assembly publishes a blacklist of 65 multi-national companies and some 270 sports persons who have links with South Africa. 21 – A bomb explodes and damages the Port Elizabeth rail link to Johannesburg and Cape Town. 25 – A pamphlet bomb explodes in Durban. 25 – The Fort Jackson Police station is attacked. 25 – The railway line near Soweto is damaged. 25 – The railway line on the Natal South Coast is damaged. 25 – Power lines are cut in Vrede. 25 – A series of terrorist actions in support of Republic Day protests are admitted by Umkhonto we Sizwe. 27 – A bomb explodes in Durban destroying a South African Defence Force recruiting building. June 1 – Three offices of the Progressive Federal Party are firebombed in Johannesburg, with no injuries. 4 – The police station in Meyerton is attacked by terrorists. 11 – The railway line on the Natal North coast is maliciously damaged. 16 – The railway line near East London is maliciously damaged. 26 – Two bombs explode at the Durban Cenotaph. 28 – The railway near Empangeni is maliciously damaged. 30 – Zwelakhe Sisulu, President of the Black Media Workers Association of