According to a report by the Huzhou Online, a state controlled news portal in the city of Huzhou, Zhejiang, the protests started after a migrant business owner refused to pay taxes and gathered a group to attack a tax collector.
The report did not explain why the business owner refused to pay his dues, but a local doctor told the AP that it could be because the town authorities were imposing a higher tax rate for migrant businesses than for local ones, causing unhappiness among the group who were from the neighboring Anhui province.
Zhejiang Online, a government-run news portal covering Zhejiang province, said about 600 people were involved in the unrest, which began on Wednesday and continued into Thursday.
The website said a group of about 100 people swarmed toward government offices in Huzhou's Zhili township, throwing stones, destroying street lights, and smashing car windows.
In a report that appeared in the Shanghai Daily, the “police detained a total of 28 people, among whom five will face criminal charges for assaulting, damaging vehicles and disturbing social order.”
Pictures spreading on Chinese social-media websites showed a burnt-out bus, crowds blocking traffic, and lines of riot police, leading to a media blackout in China’s popular social media sites on Friday.
According to the BBC, China has thousands of riots every year, often sparked by minor rows.