TOKYO (Kyodo) -- Japan is monitoring developments in South Korea with "particular and grave" concerns, the top government spokesman said Wednesday, following the detention of President Yoon Suk Yeol over his declaration of martial law in December.

Yoon, identified as insurrection leader, is exercising right to remain silent -Yoon is first sitting president taken into custody -Yoon says decided to appear for questioning to prevent ‘bloodshed’ -CIO mulls requesting warrant to extend detention -Massive operation with 1,

For weeks, impeached South Korean President Yoon Suk Yeol has holed up inside his guarded residential compound as investigators try to figure out how to detain him.

In declaring martial law early last month, Yoon used similar language, citing the need to “eradicate pro-North Korean forces.” He later defended the move as a temporary measure to warn his opposition rivals, whom he accused of obstructing governance. Critics, however, viewed the declaration as an authoritarian overreach.

Impeached South Korean President Yoon Suk Yeol was arrested and questioned by authorities on Wednesday in relation to a criminal insurrection investigation, saying he was only co-operating with what he called an illegal probe to avoid violence.

SEOUL, South Korea — South Korean authorities successfully detained President Yoon Suk Yeol on Wednesday over his botched declaration of martial law, weeks after a first attempt ended in a ...

TOKYO, Jan 15 (Bernama-Kyodo) -- Japan sees South Korea as an important neighbour and partner, Chief Cabinet Secretary Yoshimasa Hayashi said Wednesday, reaffirming strong bilateral ties despite President Yoon Suk Yeol's detention.

Yoon, who was apprehended on Wednesday in a massive law enforcement operation at his residence, faces potential rebellion charges.

After lawyers of South Korean President Yoon Suk Yeol argued that his arrest on January 15 was unlawful, a photo spread in social media posts falsely claiming it showed a search warrant used to illegally detain him rather than an arrest warrant.

Over 3,000 police came to bring in Yoon for questioning after a much smaller initial attempt was blocked by presidential security.

South Korean police detained impeached President Yoon Suk Yeol at his residence in Seoul on Wednesday local time, ABC News confirmed.