![Construction ongoing in Beijing subsidiary admin center (1/4)](http://www.ecns.cn/hd/2017/02/21/10cc282a04bd4ed2906e2cf0ccf86262.jpg)
Construction goes on at the subsidiary administrative center of Beijing in its suburban Tongzhou District. Building the center in Tongzhou is one of several moves to cure "urban ills" including overpopulation, traffic congestion and smog. It is expected to relocate about 400,000 residents from the city center to the suburban district. (Photo: China News Service/Han Haidan)