Ex-Defence Minister Kim Yong-hyun is likely to be the first to face indictment on the accusation of being a central figure in President Yoon's surprise martial law declaration on Dec. 3.

South Korea’s President Yoon Suk Yeol again declined to appear for questioning by investigators over his martial law declaration as the embattled leader seeks to first defend himself at an impeachment trial.

The Constitutional Court will decide whether to remove Yoon sometime in the next six months. If he is removed from office, a snap election will be called.

South Korea's suspended President Yoon Suk Yeol did not respond on Wednesday to a second summons by anti-corruption authorities who, along with prosecutors, are investigating his short-lived martial law decree issued early this month.

South Korea's President Yoon Suk Yeol failed to appear before law enforcement authorities on Wednesday for questioning over his attempt to impose martial law. A joint investigation team, consisting of the police,

President-elect Donald Trump plans to launch a mass deportation operation targeting millions of immigrants living in the U.S. illegally and with temporary protections once he takes office on Jan. 20, a challenging initiative that could split apart families and affect U.S. businesses.

A summons for Mr Yoon to appear for questioning over alleged insurrection was delivered to the presidential residence on Tuesday but returned, the agency quoted a joint investigation team as saying. If he responds to the summons, it will be the first time in history that a sitting president appears before prosecutors as a suspect.

South Korea's opposition said Tuesday it would impeach acting president Han Duck-soo in protest at the interim leader's refusal to sign into law special bills to investigate his impeached predecessor.