Former premier Dr Mahathir Mohamad wants Prime Minister Najib Abdul Razak to join him in responding to allegations of misconduct in their respective premiership at a forum next month.

Mahathir said he will be answering all questions asked of him at the “Nothing to Hide 2.0” forum, including whether he himself had stolen any public funds.

"Najib should attend too, and give answers or make accusations against me...