PAS secretary-general Datuk Takiyuddin Hassan says the party has not received a formal invitation from Pakatan Harapan to join the federal government.

Speaking to reporters at the MCA Chinese New Year open house in Kuala Lumpur on Saturday, Takiyuddin also said the Islamist party will cooperate and support Tun Dr Mahathir Mohamad as prime minister until the end of the term.