A few protests have been brewing in Guangdong, but it sounds like authorities are starting to get more active in repressing them now. From VOA:
Protests exploded into violence Monday and Tuesday in the provincial city of Zhongshan, with fighting between locals and migrants who have long-complained of wages and benefits lower than those available to local workers.
There has been no official report of injuries or arrests. But media reports from nearby Hong Kong say at least five and as many as 30 people have died in the violence, which also left hundreds of others injured.
The rioting is the latest in a string of violent protests in Guangdong linked to migrant workers and protests against unequal wages and other forms of alleged discrimination.
Last year, hundreds of provincial police battled with migrant workers in Guangdong’s Zengcheng city, following an altercation involving police and a migrant street-vendor and his pregnant wife, who were allegedly selling their wares in front of a supermarket.