Police investigate death of seven-week-old baby in Sydney

Police in Sydney's west are investigating the death of a seven-week-old baby.

Officers were called to a home in St Marys, in the city's west, about 4.15am after receiving reports a baby was unresponsive.

Paramedics performed CPR before the baby boy was taken to The Children's Hospital at Westmead, but died soon after.

Homicide Squad and local police have established a crime scene and are investigating the circumstances surrounding the baby's death.

Police will prepare a report for the coroner.

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