An aged man and his grandson is seen on the train No. 7559 from Kashgar to Hotan, northwest China's Xinjiang Uygur Autonomous Region, May 23, 2016. A low-cost train service linking Kashgar and Hotan, two cities in the south of Xinjiang Uygur Autonomous Region, began on May 15. The line linked a total of nine cities and counties in the underdeveloped region and a complete journey took about eight hours. It has handled more than 8,000 trips since May 15. (Xinhua/Zhao Ge)