Protesters clash with police in Seoul.
About 6,000 workers, students and opposition party members are here in the city centre to protest parliament's ratification of a controversial free trade deal with the United States.
On Tuesday South Korea's ruling conservative party pushed the agreement through parliament, as legislators clashed and one lawmaker of the opposition Democratic Labour Party let off a tear gas device.
The same lawmaker also attended the rally saying he wants the agreement nullified.
(SOUNBDITE) (Korean) KIM SUN-DONG, LAWMAKER OF OPPOSITION DEMOCRATIC LABOUR PARTY WHO SET OFF A TEAR GAS DEVICE AT CHAMBER, SAYING:
"I conveyed the tears of the people, caused by the trade between South Korea and the United States, to the ruling Grand Party members and the National Assembly during the treaty's ratification. Today, people are here to fight for the nullification of the Free Trade Agreement."
The bill was passed by an overwhelming majority, as most members of the opposition Democratic Party abstained from the vote.
The deal was approved by U.S. Congress last month, and signed into law by President Obama.
Travis Brecher, Reuters
