South Korean authorities detained President Yoon Suk Yeol on Wednesday over his botched declaration of martial law, weeks after a first attempt ended in a dramatic standoff at the residence where he had been holed up since he was impeached.

The Corruption Investigation Office for High-Ranking Officials (CIO), which is leading a joint investigation, said the arrest warrant was executed at 10:33 a.m. (8:33 p.m. Tuesday ET), hours after hundreds of police officers arrived at Yoon’s presidential compound in central Seoul.

Yoon, who was impeached last month after his short-lived martial law order plunged South Korea, a key U.S. ally, into political chaos, is South Korea’s first president to be arrested in office.

“Unlike the first execution attempt, this time there were no individuals or security staff actively obstructing the execution, and there were no significant physical clashes,” the CIO said in a briefing.

In an address to the nation, Yoon said that the warrant was illegal but that he decided to comply “to prevent an unfortunate and bloody confrontation.”

“Unfortunately, the rule of law in this country has completely collapsed,” he said, according to his office.

The main opposition Democratic Party hailed Yoon’s arrest as “the first step towards restoring constitutional order.”

“Although delayed, it is a relief to confirm that public authority and justice are still alive in South Korea,” floor leader Park Chan-dae said in a text briefing.

Investigators who arrived before dawn at Yoon’s presidential residence were met by members of his security service, who blocked them from detaining Yoon during their first attempt on Jan. 3.

Lawyers for Yoon and lawmakers from his People Power Party were also on the access road leading to the residence, arguing that the warrant was illegal and blocking the police from progressing toward the residence’s entrance.

Nearby, thousands of Yoon’s supporters and critics held dueling protests in below-freezing temperatures. Many of Yoon’s conservative supporters carried American flags and placards with slogans inspired by President-elect Donald Trump, such as “Stop the Steal” — a reference to Yoon’s unsubstantiated claims of election fraud which he cited among his reasons for declaring martial law.

Police officers could later be seen making progress toward the hillside villa after they pushed through multiple blockades made up of vehicles and barbed wire.

Yoon’s legal team said Wednesday that he was willing to appear for questioning voluntarily rather than be taken into custody. But a convoy of black SUVs was later seen leaving the presidential compound with a police escort, and Yoon arrived at the CIO office shortly afterward.

“The president remained very composed as he was being arrested,” Yoon Sang Hyun, a PPP lawmaker who was with Yoon at his residence as he was taken into custody, said in a phone interview. “He even comforted me, instead.”

He said he understood that Yoon planned to exercise his right to remain silent.

Yoon can be held for up to 48 hours, after which investigators would need to apply for another warrant to formally indict and continue to hold him. He faces possible charges of insurrection, one of the few crimes for which South Korean presidents do not have immunity.

Yoon, 64, also faces trial in South Korea’s Constitutional Court to determine whether to uphold his Dec. 14 impeachment by lawmakers, which suspended him from presidential duties.

He did not attend the first day of proceedings Tuesday, citing security concerns. The hearing ended after about four minutes. A second hearing is set for Thursday.

The warrant was executed far more smoothly Wednesday than during the first attempt, when Yoon’s presidential bodyguards faced off with law enforcement officers for almost six hours, saying they were required by law to protect the president.

Investigators withdrew but said they would take all necessary measures in their next attempt, and the warrant was re-issued last week after having expired.

South Korea’s acting leader, Deputy Prime Minister Choi Sang-mok, had raised concerns about possible clashes Wednesday between authorities and the presidential bodyguards.

“This moment is a crucial one for maintaining order and the rule of law in the Republic of Korea,” he said, using South Korea’s formal name. “The entire nation and the international community are closely watching this situation.”

The CIO had said about 1,000 police officers would be deployed Wednesday to assist with executing the warrant. Authorities also warned that anyone who tried to obstruct them could face arrest themselves.

Yoon’s supporters have said that opponents are trying to humiliate him and that dragging him out of his residence in handcuffs could spark a “civil war” in a country deeply divided along ideological and generational lines.

“He is being treated as though he were a member of a South American drug cartel,” Chung Jin-suk, Yoon’s chief of staff, said Tuesday.

Lawyers for Yoon said that the warrant was invalid for jurisdictional reasons and that the law does not allow searches of locations that could contain military secrets, such as the presidential compound, without consent.

Yoon, who took office in 2022 for a single five-year term, has struggled to advance his legislative agenda against the opposition-controlled parliament.

In a surprise late-night address on Dec. 3, he accused “anti-state forces” of paralyzing the government and sympathizing with communist North Korea and declared emergency martial law, which included a ban on all political activity.

He lifted the martial law order, South Korea’s first since 1980, about six hours later, after lawmakers voted unanimously to reject it.

Though Yoon has apologized for the order, which he said was within his power as president to issue, he has repeatedly defied summonses to appear for questioning in the criminal investigation.

The episode has deeply shaken South Korea, which has a long history of military-authoritarian rule but has transitioned into one of Asia’s most vibrant democracies and the world’s 10th-largest economy.

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