In pics: construction site on Lhasa-Nyingchi section of Sichuan-Tibet Railway in China's Tibet

Workers are seen at a construction site of the Yarlung Zangbo River bridge on the Lhasa-Nyingchi section of the Sichuan-Tibet Railway in Gonggar of southwest China's Tibet Autonomous Region, Dec. 22, 2018. The Sichuan-Tibet Railway will be the second railway into southwest China's Tibet Autonomous Region after the Qinghai-Tibet Railway. The line will go through the southeast of the Qinghai-Tibet Plateau, one of the world's most geologically active areas. (Xinhua/Wang Quanquan)