South Korean law enforcement authorities will request that impeached President Yoon Suk Yeol appear for questioning this week over his short-lived martial law decree as they expand a probe into whether his ill-conceived power grab amounted to rebellion.

South Korea’s opposition leader offered Sunday to work with the government to ease the political tumult as officials sought to reassure allies and markets, a day after the opposition-controlled

The court has up to six months to decide whether to remove Yoon Suk Yeol from office or to reinstate him as president after his impeachment over an attempt to declare martial law.