Although revolutionary leaders were sympathetic toward the ethnic Chinese, they were unable to stop the sporadic violence. Those who were affected fled from the rural areas to Dutch-controlled cities, a move many Indonesians saw as proof of pro-Dutch sentiments. There was evidence, however, that Chinese Indonesians were represented and participated in independence efforts. Four members of the Investigating Committee for Preparatory Work for Independence (BPUPK) were Chinese: Liem Koen Hian, Oey Tiang Tjoei, Oey Tjong Hauw and Tan Eng Hoa. Yap Tjwan Bing was the sole Chinese member of the Preparatory Committee for Indonesian Independence (PPKI). Ong Eng Die became a government minister in the Indonesian Republic.