A five-week-old boy has died after being mauled by his family's American Staffordshire dog on the NSW central coast.
Emergency services were called to the family's Kariong home at 2:20am on Sunday with reports the baby had been mauled.
Officers and paramedics performed CPR on the five-week-old - whose parents were at home when the incident occurred - but could not revive him.
The dog, which is owned by the family and was registered, was seized by the council and will be euthanised in the coming days.
Police said there were no suspicious circumstances related to the death.
"Our thoughts are certainly with the parents, the family friends and also the first responders involved," Detective Superintendent Darryl Jobson said.
"This is a matter of tragic proportions and it is subject to investigation, and we will be making a report to the coroner."