Pakatan Harapan's prime ministerial candidate Dr Mahathir Mohamad has called on the voters in Langkawi to reject Umno.

This is despite Langkawi having been an undefeated Umno stronghold since Merdeka.

"The time has come to reject Umno, tolak (push) them until they fall," Mahathir said at a ceramah in Langkawi last night.