Update: 3:10PM Former world 800 metres champion and Olympic silver medallist Mbulaeni Mulaudzi has died in a car accident in his native South Africa.
The 34-year-old Mulaudzi, who carried the South African flag in the opening ceremony at the Athens Olympics in 2004, won his silver medal at the same Games, having picked up a Commonwealth Games gold in Manchester two years earlier.
He won the 2009 world championship title in Berlin after suffering the disappointment of a semi-final exit at the Beijing Olympics a year earlier.
Mulaudzi retired from track and field in 2013.