The agency said its outnumbered investigators had several scuffles with presidential security forces that threatened their safety.
Protesters in South Korea brave cold to demand Yoon Suk Yeol's ouster as detention deadline looms
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The Corruption Investigation Office for High-Ranking Officials said Yoon was brought into custody about five hours after investigators arrived at the presidential compound and about three hours after they successfully entered the residence, in their second attempt to detain him over his imposition of martial law.
South Korean President Yoon taken to detention center after questioning
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