(091116) -- CHANGCHUN, Nov. 16, 2009 (Xinhua) -- This file photo taken on October 2008 shows the zone straddling the borders of China (bottom), Russia (Top L) and the Democratic People's Republic of Korea (DPRK) (R). The Chinese government has approved a border development zone in the Tumen River Delta to boost the cross-border cooperation in the northeast Asian region, the Jilin provincial government announced Monday. (Xinhua/Xu Jiajun