Students lay flowers to a martyrs' monument in Linjiang, northeast China's Jilin Province, April 3, 2018. People mourn for the deceased as the Qingming Festival, the Chinese tomb-sweeping day, approaches. (Xinhua/Jiang Dehong)
Police officers pay tribute in front of a monument of war heroes in Yantai, east China's Shandong Province, April 4, 2018. People mourn for the deceased as the Qingming Festival, the Chinese tomb-sweeping day, approaches. (Xinhua/Tang Ke)
Students mourn for martyrs online in Longsheng County, south China's Guangxi Zhuang Autonomous Region, April 4, 2018. People mourn for the deceased as the Qingming Festival, the Chinese tomb-sweeping day, approaches. (Xinhua/Wu Shengbin)