Johannesburg - A man accused of murdering a police officer in Kagiso, Krugersdorp, has appeared in the Krugersdorp Magistrate's Court, Gauteng police said on Wednesday.

Mntungani Mbatha, 39, would be kept in custody and his case was postponed to Tuesday, Captain Augustinah Selepe said.

Mbatha was arrested in Dobsonville, Soweto, on Sunday.

Lt-Col Knox Chauke, 56, who was attached to the police's national training division, was shot dead in the driveway of his home around 6am on Friday.

“Three suspects that are linked to this murder are still at large. A manhunt for them is continuing,” said Selepe.

On Sunday, Lt-Col Lungelo Dlamini said the motive for the shooting was unknown.

National police commissioner Riah Phiyega said she was outraged and concerned by the rate at which police officers were being killed.

“As the SAPS family, we are deeply saddened by the loss of our colleagues,” she said.

“We know that their abrupt and untimely passing has caused untold grief to their family members, close friends, and colleagues.”

She appealed to anyone with information on police killings to contact police. - Sapa