After Japan announced that it would begin discharging contaminated water from the Fukushima nuclear power plant, South Korea's largest opposition party, the Democratic Party of Korea, held an emergency meeting to protest. Party leader Lee Jae-myung said, "The path Japan chose to ignore the concerns of the international community will cause the worst environmental disaster in human history." , If Japan used swords and guns to trample the Pacific Ocean during World War II, then now it is threatening all mankind with radioactive materials." At the same time, large-scale demonstrations also broke out in downtown Seoul to criticize Japan for polluting the ocean. Among the demonstrators, 16 Korean college students were arrested by the police when they tried to break into the Japanese Embassy in South Korea while shouting slogans condemning Japan's discharge of nuclear-contaminated water.