Acting President Choi Sang-mok was grilled Thursday at a special parliamentary committee investigating President Yoon Suk Yeol's martial law bid, with opposition lawmakers questioning him about a memo Yoon allegedly gave Choi ordering a budget for an emergency legislative body.

The charges are unprecedented for a South Korean president, and if convicted, Yoon Suk Yeol could face years in prison for his shock martial-law decree, which sought to ban political and parliamentary activity and control the media.

Prosecutors in South Korea have indicted impeached President Yoon Suk Yeol in connection to insurrection charges. South Korea’s parliament voted to impeach Yoon last month after he briefly

South Korean prosecutors indicted impeached president Yoon Suk Yeol on Sunday on charges of leading an insurrection, with his short-lived martial law declaration on 3 December.

Ruling party lawmakers meet detained President Yoon Lawmakers of the ruling People Power Party -- Yoon Sang-hyun (R) and Kim Meen-geon -- meet the press at the Seoul Detention Center in Uiwang, south of Seoul,

The parliamentary committee investigating President Yoon Suk Yeol's short-lived imposition of martial law failed to convince either Yoon or his former Defense Minister Kim Yong-hyun to attend hearings held at their detention facilities on Wednesday.