On 30 May 1925 an incident took place at Shanghai in which a British police captain fired into a Chinese mob, resulting in the death of some Chinese. This gave a great fillip to anti-foreign movement in China. The students, merchants and traders shouted “Foreigners have shot down Chinese citizens on Chinese soil”.
Soon anti-foreign riots bioke out at Chinkiang, Hankow, Kiukiang and Chunking. The radical sections demanded return of all concessions, the expulsion of foreign troops and immediate abolition of extraterritoriality. Foreign lives and property in China was greatly jeopardized and the Chinese organized an effective blockade of Hongkong and boycott of British goods. This blockade lasted for over a year. What is really surprising that British took no retaliatory action.