A primary school teacher has been hacked with a panga in front of a classroom full of pupils in Matlala, near Polokwane, Limpopo police say.
Lt-Col Ronel Otto said the 53-year-old man was teaching at Masehlong Primary School when his brother walked in and attacked him on Tuesday.
She said some of the pupils tried to stop the assault, but it was too violent.
The teacher was taken to hospital, but died shortly after arrival.
His 40-year-old brother was arrested and charged with murder. He was expected to appear in the Matlala Magistrate's Court on Thursday.