Former prime minister Dr Mahathir Mohamad said he was ashamed to call Perkasa chief Ibrahim Ali his friend.

"I am ashamed. He is my friend but he doesn't want to join Parti Pribumi Bersatu Malaysia because we are friends with DAP," Mahathir said during a press conference at Putrajaya.

While Ibrahim had claimed that DAP was "jahat (evil)", he should compare DAP with MCA to truly see who was more evil, said Mahathir.