As protests in Korea over U.S. beef imports began to stretch into their third month, what had largely been peaceful demonstrations began to break down into violence. With Korea set to resume inspecting imports of U.S. beef after reaching a new understanding on imports with the United States, angry protesters attacked police with steel pipes and stones. Some attempted to use ropes to remove buses set up by the police to block the path of protestors. The violence left several hundred protestors and police injured.