Police officers check a fire extinguisher fitted on a school bus of Tianhe primary school in Gaocheng District of Shijiazhuang, north China's Hebei Province, Aug. 27, 2020. Gaocheng District of Shijiazhuang organized police officers to carry out safety and performance checks of all school buses within the district, as a way to prepare for the new term and ensure the transportation safety of students. (Xinhua/Luo Xuefeng)
