Tibetans in Nangchen County, Qinghai province, China/Tibet, bought vegetables from Chinese vendors until early 2011, when the prices began to increase dramatically. In Chinese-owned vegetable shops, the price of 1 kg of apples increased from 2 yuan to 8 yuan, and the prices of other staple foods, such as cabbage, onions, and potatoes, also increased. The price increases put financial strain on Tibetans.
In a shooting incident on May 30, 1925, Sikh police under British command opened fire on Chinese protestors in the International Settlement of Shanghai, killing nine demonstrators and wounding many others. News of the incident spread across China, triggering an outburst of nationalism and prompting protests all over, but especially in Shanghai and Canton (Guangzhou) – two cities with concentrated British interests.