FILE PHOTO: Passengers wait to board trains at Shanghai Hongqiao railway station ahead of the five-day Labour Day holiday, in Shanghai, China, April 28, 2023. REUTERS/Aly Song/File Photo
FILE PHOTO: Passengers wait to board trains at Shanghai Hongqiao railway station ahead of the five-day Labour Day holiday, in Shanghai, China, April 28, 2023. REUTERS/Aly Song/File Photo