S Africa probes deaths of 31 Lesotho miners in May explosion

At least 31 people are believed to have died in a gas explosion in a disused mine shaft in South Africa’s Free State province that happened on May 18 but has only now come to light, authorities said on Friday.

The dead are believed to be from neighbouring Lesotho – which reported the incident to South African authorities – and died in a ventilation shaft in Virginia mine in Welkom city, the Department of Mineral Resources and Energy (DMRE) said.It was not clear what caused their deaths but the DMRE said an investigation into the incident with the help of Harmony Gold – the previous owner of the mine which ceased operations in the 1990s – determined that methane levels were very high in the ventilation shaft.

Authorities in Free State were being prevented from sending a search team into the mine to retrieve bodies because there were still dangerously high levels of methane gas in the shaft, the department said in its statement on Friday.

It said it was considering various options to “speedily deal” with what was “a unique and strange situation”.

Illegal prospecting is rife in South Africa’s old gold-mining areas, where miners go into closed and often dangerous mine shafts to dig for deposits.