A major probe involving homicide detectives is under way following the sudden death of a five-year-old boy.
About 6.40am on Monday, emergency services attended a home in Grafton, in NSW’s Northern Rivers region, after it was a reported a child was unresponsive.
CPR was performed by police with an ambulance crew shortly taking over, but the youngster was tragically unable to be saved.

Now, it is understood the boy’s parents are being questioned by police, the ABC reports.
On Friday, NSW Police confirmed that investigations into the circumstances are under way, with members of the state’s homicide squad involved in the operation.
A post mortem examination is due to be carried out to establish the circumstances of the boy’s tragic death.
No arrests have been made.
Police have appealed for anybody with information to contact Crime Stoppers on 1800 333 000.
