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Yam G-Jun
FILE - In this July 17, 2018, file photo, Malaysian King Sultan Muhammad V salutes during the national anthem at the opening of the 14th parliament session at the Parliament house in Kuala Lumpur, Malaysia. Muhammad V has abdicated in an unexpected and rare move, just after two years on the throne. The palace said in a statement on Sunday, Jan. 6, 2019, that Sultan Muhammad V, 49, has resigned with immediate effect, cutting short his five-year term, without giving any reasons. Sultan Muhammad V, ruler of northeast Kelantan state, was installed in December 2016 as one of the country's youngest constitutional monarchs. (AP Photo/Yam G-Jun, File)

KUALA LUMPUR, Malaysia — Malaysian King Sultan Muhammad V abdicated on Sunday in an unexpected move, after just two years on the throne.

The palace said in a statement that the 49-year-old ruler had resigned as Malaysia's 15th king with immediate effect, cutting short his five-year term. No reason was given in the statement.

It marked the first abdication in the nation's history.

Sultan Muhammad V, ruler of northeast Kelantan state, took his oath of office in December 2016, becoming one of Malaysia's youngest constitutional monarchs.

He is said to have married a 25-year-old former Russian beauty queen in November while on a two-month medical leave. Reports in Russian and British media and on social media featured pictures of the wedding, which reportedly took place in Moscow. Neither the sultan, the palace nor the government had officially confirmed the wedding.

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Speculation that Sultan Muhammad V would step down emerged this past week, shortly after he returned from his leave, but Prime Minister Mahathir Mohamad said Friday that he was unaware of any abdication plans.

Under a unique system maintained since Malaysia's independence from Britain in 1957, nine hereditary state rulers take turns as the country's king for five-year terms.

The Council of Rulers is expected to meet soon to pick the next king.

The monarch's role is largely ceremonial, since administrative power is vested in the prime minister and parliament. But the monarch is highly regarded, particularly among the ethnic Malay Muslim majority, as the supreme upholder of Malay tradition.