South Korean prosecutors indicted the impeached President Yoon Suk Yeol on insurrection charges over his declaration of martial law, a move that plunged the country into political turmoil.

President Yoon Suk Yeol will stand trial along with his former defense minister and others who participated in his short-lived imposition of martial law.

SEOUL (Reuters) - South Korea's prosecutors indicted suspended President Yoon Suk Yeol on Sunday on charges of leading an insurrection with his short-lived imposition of martial law on Dec. 3, the Yonhap news agency reported. The decision came after anti-corruption investigators last week recommended Yoon be formally charged.

North Korea's foreign ministry vowed the "toughest counteraction" against the United States as long as Washington "refuses" the country's sovereignty.

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North Korea says it tested a cruise missile system, its third known weapons display this year, and vowed “the toughest” response to what it called the escalation of U.S.