Detained President Yoon Suk Yeol has been moved to a solitary cell at the Seoul Detention Center's general wing after he was placed under formal arrest over the weekend, a correctional official said Monday.

Yoon Suk Yeol was taken to a detention center after being questioned by law enforcement officials over his imposition of martial law last month

Yoon Suk Yeol becomes first sitting South Korean president to be arrested, six weeks after he declared martial law

Yoon's declaration of martial law in December stunned South Koreans and plunged one of Asia's most vibrant democracies into political turmoil.

Yoon’s detention, after a tense standoff outside the presidential residence, marks the latest chapter in a bewildering series of events since his martial law decree.

Judges at South Korea's Constitutional Court get underway with a trial this week that could remove the country's president from office. Yoon Suk Yeol sent the nation into a democratic crisis six weeks ago when he declared martial law.

SEOUL, South Korea (AP) — South Korean court orders formal arrest of impeached President Yoon Suk Yeol over martial law decree.

Hours after South Korea’s impeached President Yoon Suk Yeol was formally arrested, triggering rioting by his supporters, his lawyers said Sunday that he remains defiant in his refusal to answer questions over the probe into his declaration of martial law last month.

Police arrested at least 17 of the attackers. The liberal opposition party accused the president of encouraging the attack.

Yoon’s detention, after a tense standoff outside the presidential residence, marks the latest chapter in a bewildering series of events since his martial law decree.

Thousands of police put down their guns and marched into South Korea’s presidential compound on Wednesday to arrest the impeached head of state Yoon Suk Yeol.