Sohn Hak-kyu, the leader of the main opposition Democratic Party, scored a victory in the ruling party's stronghold of Bundang, just south of Seoul, which is
considered the biggest match of Wednesday's by-elections, according
to an exit poll by a local TV station.
If the forecast is correct, Sohn's triumph will boost his bid
to become South Korea's next president, while dealing a blow to the
Lee Myung-bak administration and the governing Grand National Party
ahead of next year's general elections and presidential polls.