South Korean President Yoon Suk Yeol attended on Tuesday a Constitutional Court hearing of his impeachment trial where he denied ordering military commanders to drag lawmakers out of parliament during his short-lived bid to impose martial law.

South Korea looks set for a dramatic political showdown this week as impeachment proceedings kick off against suspended President Yoon Suk Yeol, who remains holed up in his fortified residence evading arrest for a separate criminal investigation.

South Korean President Yoon Suk Yeol denied wrongdoing as he branded himself as a firm believer in democracy in his first appearance at an impeachment trial looking into his shocking and brief imposition of martial law last month.

South Korean President Yoon Suk Yeol attended on Tuesday a Constitutional Court hearing of his impeachment trial where the detained leader may get a chance to argue his case or answer questions over his short-lived bid to impose martial law.

South Korea's suspended President Yoon Suk Yeol showed up for his impeachment trial for the first time today, striking a defiant tone as the court grilled him over his failed martial law bid. The Constitutional Court must complete all hearings and issue a sentence within 180 days.