Police in southern China are searching for a man who allegedly killed three people and injured six at a kindergarten in the country's southeastern province of Jiangxi.
The 48-year-old suspect was identified by his surname Liu in a police statement.
No further details of the Wednesday morning attack in the province's Anfu County were given.
China upgraded security at schools following a spate of deadly attacks in recent years, attributed largely to people bearing grudges against society or who had unidentified mental illnesses.
China does not allow private gun ownership, so most such attacks are carried out with knives, homemade explosives or petrol bombs.
Around 100 children and adults have been killed and hundreds injured over the past decade in apparently unco-ordinated, 'lone wolf' attacks in which the motive was unclear.
The overwhelmingly male assailants were either killed, ended their lives or were put on trial and executed.
Acts of violence against China's youth resonate especially strongly due to the country's chronically low birth rate, partly due to decades of population control policies.