SEOUL, South Korea -- South Korea’s jailed ex-President Yoon Suk Yeol again refused to attend questioning by investigators Friday, using a new method to resist: He took off his prison uniform and lay down on the floor at his detention room.

South Korea's impeached former president Yoon Suk Yeol lay on the floor of his prison cell wearing only an undershirt and boxer shorts to resist questioning, prosecutors said Friday, after a fresh attempt to bring him in for interrogation over election tampering allegations failed.

South Korea's impeached former president Yoon Suk Yeol lay on his prison cell floor in his underwear to resist attempts to interrogate him, prosecutors said Friday. South Korea's justice minister told a parlimentary hearing that it was "frankly embarrassing for a former president to behave that way".