A six-year-old boy has drowned in a backyard swimming pool in Sydney's south-west.
Emergency services were called to a home on Spitfire Drive at Raby just before 5.30pm on Sunday, after the boy was found unconscious in the pool.
The boy was rushed to The Children's Hospital at Westmead under a police escort, but he died a short time after arriving.
Chief Inspector of Macquarie Fields Local Area Command, Dean Smith, issued a warning to homeowners to check backyard pools to ensure that they comply with safety laws.
"As a father and grandfather, I encourage everyone to check and double-check their fences and gates to make sure everything complies to safety standards," he said.
"It takes 10 minutes to check your fencing and gates and those minutes could help prevent another tragedy like this from happening again."
A crime scene has been established and police are investigating.
Police said a report would be prepared for the coroner.
