“He is recuperating well although still under observation in the ICU,” ANC national spokesman Zizi Kodwa said.
“He is in good spirits and talking.”
Mthembu was shot and wounded on Sunday evening, while drawing money at an ATM on Mandela Street in Witbank.
Earlier on Tuesday, Brigadier Selvy Mohlala said three people were being questioned over Mthembu’s shooting.
“We cannot say they are linked [to the Mthembu robbery]. We are questioning them as to whether they are linked,” Mohlala said.
The three were arrested in Tzaneen, Limpopo, on Monday night in possession of suspected stolen property including a laptop, cellphones and bank cards.
On Monday evening Kodwa said Mthembu got into a scuffle with the armed robber and a shot was fired. The bullet grazed his cheek and then hit him in the upper shoulder.
Mohlala said that after the shot went off the armed man and three accomplices went to Mthembu’s car. Four of Mthembu’s friends were waiting in the car. They robbed Mthembu and his friends of their money and cellphones.
The African National Congress praised police for their response.
“We once more welcome and thank the police for their swift action in arresting the suspects related to this crime,” Kodwa said.