South Korea's arrested President Yoon Suk Yeol does not intend to take part in a second day of questioning on Thursday, his lawyer said, further stonewalling a criminal probe into whether he committed insurrection with his martial law bid.

South Korea's anti-corruption agency detains impeached President Yoon Suk Yeol over his brief declaration of martial law.

Yoon Suk Yeol faces insurrection charges and an impeachment trial after trying to impose martial law last month.