Hundreds of radicals, who also demand the withdrawal of 37,000 U.S. troops stationed in the South, are blocked from leaving Seoul to ma rch towards the border. The festival is outlawed. Aug 14 - Riot police backed by helicopters and armored vehicles firing tear gas storm Yonsei to break up the festival attended by about 2,000 students.
Students shelter at a classroom complex and a science block.
Police ring the campus. 16 - Police raid the campus again to try to arrest about 3,600 students continuing violent protests. They pull back after failing to seize the students. Some students sneak off the campus into surrounding hills. Aug 17 - More than 10,000 riot police storm the university for the fourth straight day and mass around the two buildings.