South Koreans vote for new president after Yoon Suk Yeol's ouster over martial law

South Koreans are voting for a new president in a snap election triggered by the ouster of Yoon Suk Yeol, a conservative who is facing rebellion charges over his short-lived imposition of martial law late last year.

Voting began at 6 a.m. local time Tuesday at more than 14,000 polling stations nationwide, the election commission said. Voting ends at 8 p.m. local time, and observers say the winner could emerge as early as midnight. 

More than 15 million people had already voted during a two-day early voting period last week, accounting for nearly 35% of the country's 44.4 million eligible voters.