Yoon attends hearing of impeachment trial President Yoon Suk Yeol looks pensive during the 10th hearing of his impeachment trial at the Constitutional Court in Seoul on Feb. 20, 2025, over his short-lived imposition of martial law in December.

South Korea’s impeached President Yoon Suk Yeol appeared in a Seoul court on Thursday for his first trial hearing on charges of insurrection in the country’s first criminal prosecution of an incumbent leader.

South Korean President Yoon Suk Yeol is in court for a hearing where his lawyers are contesting his arrest on a criminal charge alleging he was orchestrating a rebellion when he imposed martial law.

South Korean President Yoon Suk Yeol could try to impose martial law again or undermine constitutional institutions should he be reinstated, lawyers for parliament argued on Tuesday as his impeachment trial entered its final phase.

Bogus child pornography claims, fabricated support for communism and fake posts showing Elon Musk calling for his removal -- a deluge of disinformation is targeting a top judge in suspended South Korean President Yoon Suk Yeol's impeachment trial.

The Constitutional Court decided Tuesday to proceed with its 10th hearing of President Yoon Suk Yeol's impeachment trial as planned, increasing the likelihood that a ruling could be reached by the end of next month.