South Korean President Yoon Suk Yeol declares martial law in late-night live television address  ABC NewsSouth Korea's President Yoon Suk Yeol declares emergency martial law - live updates  BBC.comSouth Korean military announces suspension of all parliamentary activity, says report – live  The GuardianSouth Korean president declares emergency martial law, accusing opposition of anti-state activities  9NewsSouth Korean won falls sharply against the U.S. dollar after president declares martial law  CNBC