Twenty-two primary school children were wounded in a knife attack Friday in central China , authorities said . Several of the children are in a critical state , state media report . The attack took place Friday morning at a primary school in Henan province . Police say they have arrested a 36-year - old local woman . China was hit by a spate of knife and cleaver attacks on school children in China .
Several of the children are in a critical state , state media report . The attack took place Friday morning at a primary school in Henan province . Police say they have arrested a 36-year - old local woman . China was hit by a spate of knife and cleaver attacks on school children in China .