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A female doctor has been arrested for travelling at 191 kilometres an hour in a 120 km zone.
Police said the 28-year-old woman was one of 12 motorists arrested in Gauteng for speeding above 160km/h over the weekend.
Police spokesperson, Wayne Minnaar, says the doctor told traffic officers that she was on her way home to Pretoria.
He says those arrested will appear in court soon.