SEOUL, Dec 30 (Reuters) - South Korea's joint investigation unit has requested an arrest warrant for suspended President Yoon Suk Yeol over his short-lived imposition of martial law earlier this month, the Yonhap news agency reported on Monday.
(Reporting by Hyunsu Yim; Editing by Kim Coghill)
((Hyunsu.Yim@thomsonreuters.com;))