| The authorities said residents tried to break in to government offices |
Thousands of people in southern China have turned out in an unusually large protest against plans for a new incinerator.
| The incinerator is due to be built near the Xi river, a source of drinking water for Lubu town |
One witness said a police officer was seriously injured while two civilians suffered head injuries. The incinerator, which would generate power as well as burning waste, is scheduled to be built near the Xi River, the area's main water source.
One resident who gave only her surname, Lin, told the Associated Press agency: "We worry about air and water pollution. "The river is a major source of our drinking water."
Residents said they took to the streets spontaneously after Lubu's town government announced the project was being halted. No reason was given for the delay, which residents worried would be only temporary.
In a post on social media, the Communist Party propaganda department for the district wrote that "some ordinary people who are unaware of the truth led by some troublemakers attempted to storm the Lubu town government".
It said that those who had attacked police officers should surrender themselves, while people inside the government offices should leave immediately.