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South Korea imposes travel ban on president over martial law declaration

President Yoon Suk Yeol plunged the East Asian democracy into chaos last week with his short-lived martial law declaration.
A protester holding a cardboard reading "leader of insurgents" on an image depicting the face of South Korea's President Yoon Suk Yeol takes part in a protest calling for his ouster outside the National Assembly in Seoul on Dec. 8, 2024.
A protester holding a poster depicting South Korean President Yoon Suk Yeol outside the National Assembly in Seoul on Sunday.Philip Fong / AFP via Getty Images

SEOUL, South Korea — The South Korean government Monday ordered an overseas travel ban on President Yoon Suk Yeol as he faces investigation on possible rebellion charges over a short-lived martial law declaration that plunged the key U.S. ally into chaos last week.

Opposition lawmakers continue to pursue impeachment for Yoon, 63, who stunned the East Asian democracy Tuesday when he declared emergency martial law, accusing the opposition-controlled parliament of paralyzing the government and sympathizing with communist North Korea, with whom South Korea technically remains at war. The martial law order banned all political activity and censored the news media.

Lawmakers rushed to the National Assembly in central Seoul, pushing past martial law troops to enter the building and vote unanimously to reject the order, which Yoon lifted early Wednesday, about six hours after he announced it.

It was a shocking turn of events for South Korea, which spent decades under military-authoritarian rule before it transitioned into a vibrant democracy and the world’s 10th-largest economy. Lawmakers swiftly called for Yoon to leave office, backed by thousands of protesters.

Protesters they take part in a protest against the president outside the National Assembly in Seoul, South Korea.
Demonstrators waving K-pop light sticks at a protest against Yoon outside the National Assembly on Sunday. Ezra Acayan / Getty Images

An impeachment motion failed to pass Saturday after lawmakers from Yoon’s governing People Power Party (PPP) walked out of parliament en masse, leaving the legislature without a quorum. The opposition bloc holds 192 seats, eight short of the two-thirds majority the bill needed to pass in the 300-member unicameral legislature.

In the meantime, Yoon — who took office in 2022 for a single five-year term — appears to have left his fate in the hands of his conservative PPP.

Party leader Han Dong-hoon said Sunday that Yoon had effectively been suspended from duty over his “unconstitutional acts.”

“I believe it is the will of the majority South Korean people that President Yoon Suk Yeol must resign,” he said in a national address, adding that he would “restore order” by ensuring Yoon’s early departure from office.

“We will minimize confusion through an orderly resignation to alleviate national and international concerns and restore the economy and the nation’s dignity,” he said.

In the meantime, he said, Prime Minister Han Duck-soo will work in close coordination with the PPP “to manage public welfare and state affairs without disruption." Yoon will not engage in state affairs, including foreign relations, he said.

Han also said authorities would investigate Yoon’s martial law declaration “rigorously, impartially and transparently.”

Though the president is generally immune from prosecution while in office, that does not include allegations of rebellion or treason.

Park Se-hyun, who is leading a special headquarters to investigate Yoon’s short-lived martial law declaration, said Sunday that Yoon had been booked as a suspect on a number of charges, including treason.

“An investigation is underway in accordance with the process,” he told reporters.

Former Defense Minister Kim Yong-hyun, who has been accused of suggesting the martial law declaration to Yoon and whose resignation Yoon accepted last week, became the first person to be detained in the martial law case after he turned himself in around 1 a.m. Sunday local time (11 a.m. Saturday ET).

Interior Minister Lee Sang-min, who is also under investigation, offered his resignation Sunday.

In a national address Sunday, Han, the prime minister, said he felt a “profound sense of responsibility for the situation” and expressed his “heartfelt apologies” to the public, bowing his head to show his sincerity, as is customary in Korean culture.

“The government will devote itself entirely to addressing the current crisis as swiftly as possible, guided solely by the will of the people,” he said.

Han said the top priority was ensuring the continuity of government, citing concerns about the economy and international instability.

He also said it was important that South Korea, which hosts almost 30,000 American troops, maintain its alliance with the U.S., as well as grow trilateral security ties with the U.S. and neighboring Japan.

“The entire Cabinet will work tirelessly to preserve trust with our allies,” Han said.

He also appealed for cooperation from the opposition, saying it was “imperative” that the legislature pass the government’s proposed budget. 

The liberal opposition Democratic Party criticized the response by the PPP and the prime minister as insufficient.

“President Yoon Seok Yeol must be immediately arrested, investigated and stripped of his military command authority,” senior Democratic lawmaker Kim Min-seok said Sunday.

Kim also questioned whether the prime minister had the constitutional authority to govern while Yoon remained in office.

Yoon apologized Saturday in a brief nationally televised address, saying his actions “stemmed from the urgency” he felt as president but adding that they “caused anxiety and inconvenience to the public.”

He said he would not evade “legal and political responsibility” but did not say he would resign, saying his party would decide how long he should stay in office and how state affairs would be managed. 

Yoon’s apology is not enough, said Han Min-soo, a lawmaker from the Democratic Party and its head spokesman. He said Yoon led an insurrection and “must face the consequences and punishment for this action.”

“I no longer refer to him as the president,” Han said in an interview Saturday. “I believe that Yoon Suk Yeol is now using tricks to buy time and deceive the people of South Korea and the opposition party.”

He said that the Democratic Party would work with other opposition parties to reintroduce the impeachment motion and that “if we are stopped again, we will keep trying.”

“I still believe that lawmakers with a conscience, even if they are members of the People Power Party, will agree to the impeachment,” he said.

Stella Kim and Janis Mackey Frayer reported from Seoul and Jennifer Jett from Hong Kong.