South African emergency workers were racing Wednesday to rescue nine miners still missing deep underground in a burning gold mine west of Johannesburg.

However, mine owner Harmony Gold said the rescue mission was being hampered by smoke and the precarious situation after the collapse of rocks.

The executors of Nelson Mandela's estate are to reveal his last will and testament on Monday, amid a very public family feud over who will carry on the family name.

Two months after the death of the 95-year-old South African statesman, lawyers will reveal who will gain control of his multi-million dollar assets.

South African police said Wednesday they had shot dead two protesters in a northern village the day before after their station was besieged by an angry mob throwing stones and petrol bombs.

"Our members felt that they were in danger and a command to defend themselves was given," police spokesman Hangwani Mulaudzi said.

Four South African police officers were arrested and charged on Friday for the killing of a protester in a slum outside Johannesburg this week, a spokesman said.

"One officer is charged with murder, the other three who were with him during the incident face charges of defeating the ends of justice," said police spokesman Neville Malila.

A British Airways airplane carrying 202 people struck an office building at Johannesburg's OR Tambo International Airport with its wing while taxiing for take-off Sunday, injuring four, aviation authorities said.

The Boeing 747-400 en route for London Heathrow Airport took a taxiway that was too narrow for it, said South African Civil Aviation Authority (CAA) spokeswoman Phindiwe Gwebu on Monday.

Caretaker Prime Minister Najib Miqati joined on Tuesday some 100 heads of state and other luminaries in South Africa to pay tribute to Nelson Mandela, a global symbol of reconciliation.

Miqati's press office said the caretaker PM represented Lebanon at the memorial service for Mandela.

South African animal welfare officers captured a hyena cub on Thursday that had been roaming the northern Johannesburg suburbs creating panic.

The animal had been spotted running around several leafy suburbs, before it was cornered and darted by veterinarians from the Johannesburg Zoo, where it has been transferred.

Nelson Mandela's discharge after nearly three months in hospital showed that he had made "progress", South African President Jacob Zuma said Tuesday, adding he is responding to treatment at home.

"I think we feel very good... that he could leave hospital which indicates the progress he has made," Zuma told journalists.

South Africa's anti-apartheid icon Nelson Mandela was Sunday discharged from hospital where he has been treated since June 8 for a recurring respiratory illness, the presidency said.

"Former President Nelson Mandela has this morning, 1 September 2013, been discharged from the Pretoria hospital where he has been receiving treatment," said a statement.

South African police on Monday said they had arrested four armed right-wing extremists suspected of planning attacks, amid claims that an ANC leadership meeting may have been targeted.

Four men, aged 40-50 years old, were arrested on Sunday, "believed to be right-wing extremists, suspected of acts of terrorism," according to Free State police spokesman Brigadier Billy Jones.