Beijing-Caofeidian bullet trains starts operation

Aerial photo taken on Aug. 21, 2019 shows the D6622 train leaves Caofeidian East Railway Station for Beijing South Railway Station in Tangshan City, north China's Hebei Province. Bullet trains running between Beijing and Caofeidian, with a stopover in Tangshan, officially started operation on Wednesday. (Xinhua/Yang Shiyao)