GUANGZHOU - Police have arrested 25 people and cordoned off sections of roads after an unrest broke out late Friday in a southern Chinese town near the metropolitan of Guangzhou, authorities said Saturday.

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The unrest was allegedly triggered by a dispute between a migrant couple, who are street vendors, and the local security personnel in front of a restaurant in the township of Xintang, Zengcheng county, Guangdong province.

Police said an unspecific number of people tried to block the police handling the dispute. Some hurled bottles and bricks towards government officials and police vehicles.

Police forces decisively intervened by arresting 25 people who incited the unrest, and took control of the situation, the authorities said.

The migrant couple from Southwest Sichuan province, with the woman being pregnant, were not injured after being checked up in a local hospital, the authorities said.

Xintang is one of the bustling manufacturing towns in Guangdong.  A number of garment factories were clustered around the area where the unrest broke out.