Saturday's vote to impeach South Korea's President Yoon brought forward by 2 hours, with opposition MPs holed up in parliament overnight.

South Korea's President Yoon Suk Yeol will address the nation in the coming hour ahead of a planned impeachment vote. Follow live:

South Korean President Yoon Suk Yeol to address the nation ahead of planned impeachment vote

President Yoon Suk Yeol of South Korea apologized for declaring martial law, but did not resign. He faces an impeachment vote on Saturday.

South Korean lawmakers are about to vote on whether to impeach President Yoon for briefly imposing martial law. Follow live:

(URGENT) Ruling party lawmakers leave parliamentary hall after voting on first lady special counsel bill, boycott vote on Yoon impeachment motion

South Korean MPs are voting on whether to impeach President Yoon Suk Yeol whose declaration of martial law caused uproar - follow live

South Korea's ruling party lawmakers boycott President Yoon's impeachment vote, effectively guaranteeing its failure

South Korean media say a National Assembly motion to impeach President Yoon Suk-yeol is expected to fail.