Former South Korean President Yoon Suk Yeol was sent back to jail after a court approved a warrant amid an investigation into his attempted imposition of martial law. This intensifies the special counsel's probe into broader allegations of justice obstruction and abuse of power against the ousted leader.

President Yoon Suk Yeol’s attempt to break a political deadlock by imposing military rule collapsed within hours, leaving him with few defenders. A vote to impeach him could come as soon as Friday.

Former South Korean president Yoon Suk-yeol returned to a solitary jail cell on Thursday after a court approved a warrant sought by prosecutors