On 3 March 2007, thousands of Chongryon members staged a rally in Hibiya Park in protest against police investigations into the organisation and bullying of schoolchildren, which they called "political suppression and human rights abuses" by the Japanese authorities. The protesters, who numbered between 3000 (according to local media) and 7000 (according to Chongryon), staged a 2.9 km-long march wielding posters of the North Korean leader Kim Jong-il. Chongryon's number two, Nam Sung-U was quoted as saying "Japan's violations of human rights against the DPRK and Koreans in Japan cannot be allowed, no matter what". The Tokyo Metropolitan Government attempted to ban the protest fearing violence but they were overruled by a court ruling. Riot police scuffled with Japanese ultranationalist groups who had gathered in counterprotest resulting in one arrest. In June 2007, it was reported that Chongryon attempted to sell its main headquarters to Shigetake Ogata, (ex-head of the Public Security Intelligence Agency who now leads an investment firm) due to financial troubles and tensions with the Japanese government, however, creditors moved to block the sale in court and, according to North Korea's official news service article of 22 June 2007, the courts granted a Japanese collection agency the right to dispose of the property.