Hundreds of college students in Baoji, Shaanxi province, blocked a provincial road for more than 40 minutes to protest the noise made by a gravel plant and a steel plant near their school, ifeng.com reported on Tuesday.

The students blocked the road in the afternoon of April 13 until they were persuaded to go back to school by police and teachers. The government of the city's Gongzhen township, where the school and plants are located, said it plans to move the gravel plant away from the school and has ordered the steel plant to make an effort to reduce its noise.