People attend a bell-tolling ceremony marking the 90th anniversary of the "September 18 Incident" at the September 18 Incident History Museum in Shenyang, capital of northeast China's Liaoning Province, Sept. 18, 2021. Sirens sounded and a huge bell tolled in Shenyang on Saturday in commemoration of the September 18 Incident 90 years ago that marked the start of Japan's 14-year invasion of China. (Xinhua/Pan Yulong)
