The impeachment of South Korea's acting President Han Duck-soo Friday has plunged the country into further political turmoil, coming less than two weeks after lawmakers impeached President Yoon Suk Yeol.

South Korea's acting president faces an impeachment vote as the Constitutional Court meets for its first hearing on Friday in the case of President Yoon Suk Yeol, who was impeached and suspended from duties after a short-lived martial law.

Yoon Suk-yeol retains the title but not the power of president while the constitutional court decides whether to approve the motion to impeach him.