A security guard attacked a primary school with a knife in southern China's Cangwu County, injuring 39 on Thursday (June 4).<br /><br />The video shows the ambulances arriving at the front of a hospital and paramedics transporting the injured people into the hospital for treatment.<br /><br />According to reports, 37 students and two adults had injures, but none of them were in life-threatening condition. <br /><br />The suspect is a security guard in his 50s named Li Xiaomin. Police have detained him and the case is under further investigation.