Beijing: Four primary schoolchildren were killed in a knife attack by a man in south China’s Guangxi autonomous region, the latest such incident in the country in recent years, reports PTI. The four children in Pingshan town of Lingshan county were attacked by the knife-wielding middle-aged man while they were on way to the Gupu primary school, state-run Xinhua news agency reported. Three children died on the spot and another died later at a nearby hospital. Police have launched a manhunt for the suspect, the report said.