Perkasa president Ibrahim Ali has likened Deputy Prime Minister Ahmad Zahid Hamidi's swipe at Dr Mahathir Mohamad's lineage to firing blanks.

He said if Zahid wanted to open fire at the former premier under the present political climate, he should use "chemical weapons".

"Make sure when you fire at someone, the person is dead.

"Don't fire with blanks, the person shot at does not die, but the person who shoots dies instead," he told a press conference in Kuala Lumpur.

Ibrahim also said Zahid should not have resorted to such attacks against Mahathir as it is not befitting of his position...