Investigators request impeached president appear for questioning

In this photo released by South Korean while delivering a speech at the presidential residence in Seoul after parliament voted to impeach him (South Korean Presidential Office/Yonhap/AP)

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.

Investigators are exploring whether his ill-conceived power grab amounted to rebellion.