Reportedly over one hundred students were involved in a massive brawl at a vocational school in Qujing, China’s southwestern Yunnan Province.

Videos and pictures of the fight are spreading on Sina Weibo. Images show students carrying long poles, huddling in large clusters, and periodically dashing towards other groups.

Local security became involved, but was unable to control the situation.

The fight took place on September 23. The school has since reported the situation stabilized and that classes have resumed. Three students were hospitalized and a police investigation is underway.