A five-year-old boy has been stabbed following an early morning domestic dispute at a home in Sydney's northwest, with a man in police custody.
The boy is in an ambulance under police escort and being raced to Children's Hospital at Westmead, police say.
The dispute occurred at a Carlingford property about 7am Friday, with the boy and his grandmother rushing to a nearby street to raise the alarm.
Police say they have arrested a 36-year-old man.
© AAP 2018
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