One child dead and two children and woman in critical condition after Blue Mountains stabbing

Crime scene established at Waratah Road, Valley Heights as NSW police say they are not looking for any other people at this time'

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A child has died in a stabbing attack in the Blue Mountains, with two other children and a woman in hospital in critical condition, New South Wales police say.

In a statement on Sunday afternoon, police said emergency services responded to reports of three children and a woman with stab wounds in a vehicle on Waratah Road, Valley Heights.