Chinese officials cancelled an industrial waste pipeline project after anti-pollution demonstrators occupied a government office in eastern China, destroying computers and overturning cars.
The demonstration was the latest in a string of protests sparked by fears of environmental degradation.
It was also the second cancellation of an industrial project this month, as officials buckle under pressure from protests.
The mayor of the eastern city of Nantong said the planned pipeline that would have emptied waste water from a Japanese-owned paper factory into the sea near Qidong was terminated.
The decision came hours after about 1,000 protesters marched through the city of Qidong, about one hour north of Shanghai, shouting slogans against the pipeline.
Several protesters entered the city government's main building where they smashed computers, overturned desks and threw documents out the windows to loud cheers from the crowd.
Environmental worries have stoked calls for expanded rights for citizens and greater consultation.
The protest followed similar demonstrations against projects in the Sichuan town of Shifang earlier this month and in the cities of Dalian in the northeast and Haimen in southern Guangdong province in the past year.
The leadership has vowed to clean up China's skies and waterways and increasingly tried to appear responsive to complaints about pollution.
But environmental disputes pit citizens against local officials whose aim is to lure fresh investment and revenue into their areas.
