South Korea's impeached President Yoon Suk Yeol was arrested Sunday, just days after being apprehended at his home in Seoul. He faces possible imprisonment for declaring martial law last month.

South Korea's impeached President Yoon Suk Yeol had his mug shot taken and underwent a physical check before spending his first night in jail as a criminal suspect, a prison officer said Monday.

South Korea's impeached President Yoon Suk Yeol refused on Monday to be questioned by investigators under a probe into whether he committed insurrection, as dozens of his supporters faced arrest over a violent rampage on a court building.