Former MCA president Dr Ling Liong Sik has joined former prime minister Dr Mahathir Mohamad in publicly calling for Najib Abdul Razak's removal as prime minister.

"I agree with Mahathir. Because he (Najib) has taken people's money and put it in his own personal accounts," Ling told a press conference after attending the 11th Festival of Minds at Tunku Abdul Rahman University College in Kuala Lumpur today.