Former Malaysian Prime Minister Najib Razak resigned Saturday as the president of leader of UNMO, the ethnic Malay party that has ruled Malaysia since its birth as an independent country in 1957, and as leader of the Barisan Nasional coalition that was ousted in Wednesday's general election.
Earlier Saturday, Najib and his wife were barred from leaving Malaysia.
Malaysia's immigration department said the couple had been "blacklisted" and could not travel.
Najib could face charges stemming from a massive corruption scandal.
His announcement on Facebook that he was going on vacation, but would return after a week, sparked rumors that he was attempting to escape possible prosecution. He denies any wrongdoing.
The Associated Press reports that a leaked flight manifesto showed Najib and his wife were scheduled to leave on a private jet Saturday for Jakarta.