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 jailed former president, Yoon Suk Yeol, again refuses to attend questioning by investigators, using a new method to resist — taking off his prison uniform and lying down on the floor at his detention room.

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.