On 28 July there were violent clashes between thousands of local residents and police in the Chinese city of Qidong, north of Shanghai. The protesters were concerned about pollution from a Japanese paper factory’s planned new sewage outlet, which they thought could contaminate drinking water and harm the city’s fishing industry. They overturned several police cars, stripped the mayor of his shirt and entered local government offices, where they found expensive bottles of alcohol, condoms and cigarettes, all things that officials are often given as bribes. Some demonstrators were beaten by riot police. The protest came to an end when it was announced that the sewage pipe project would be permanently cancelled.