Mahathir admits embarrassment but to keep highlighting Najib's name

Former prime minister Dr Mahathir Mohamad has admitted that he was ashamed to have to "reprimand" his rival Najib Abdul Razak who has been embroiled in allegations of misappropriation of state funds.

However, Mahathir said he "had to" constantly bring up the former sixth prime minister to ensure Najib does not return to power.

"Actually, I am very ashamed of...