Disputed Bersatu chairperson Dr Mahathir Mohamad and his allies, who are fighting back following an attempt by faction rivals to oust them from the party, are setting their sights not only on Bersatu president Muhyiddin Yassin but also six of his supporters.

Mahathir and his allies, in a joint statement, said Muhyiddin and six other MPs have breached party ethics and should face action.

"The action of Muhyiddin and six other MPs declaring that (Bersatu had) quit Harapan clearly goes against the party constitution as there is no...