Police in south China's Guangdong Province have arrested 19 people who are allegedly connected to a recent incident of unrest in the region.

The 19 suspects were arrested with the approval of local procurators on three charges, including obstruction of official affairs, causing a disturbance and intentional damage of property, according to a statement issued Friday by the government of Guangdong's city of Zengcheng.

The unrest erupted on June 10 after a pregnant woman from Zengcheng's township of Xintang fell into a dispute with local security personnel who asked her to move her stall, which was placed in front of a supermarket, said the statement.

The woman and her husband were migrant workers from southwest China's Sichuan Province.

Later on the night of June 10, more than 100 people gathered in front of the supermarket, some of whom hurled bottles and bricks at government officials and police vehicles. They later marched towards the nearby Dadun public security station, damaging several police vehicles and private cars with rocks in the process, said the statement.

On June 11-12, some people gathered around the public security station again, vandalizing vehicles and automatic teller machines and attacking police officers.

The unrest was brought under control and order was restored on Monday morning, said the statement.