A grandmother has died after being hit by a garbage truck while pushing her grandson in a pram on a northern Sydney street.
Police were called to Moorilla Street, Dee Why, just after 11:30am after the 58-year-old woman was struck by the vehicle.
The street runs next to the busy, arterial Pittwater Road.
The local woman was unconscious when paramedics arrived and treated at the scene for severe lower body injuries.
Emergency services stopped traffic on Pittwater Road so the CareFlight helicopter containing medical professionals could land.
"Doctors were able to attend to the woman at the scene and provide the best possible treatment but she was too badly injured to be saved unfortunately," Inspector Ellen Kaserman said.
Her grandson was found in a pram nearby but he was uninjured.
NSW police said the driver of the garbage truck was taken to hospital for mandatory blood and urine tests.
Inspector Kaserman said he was "very distressed" and "traumatised" so had not yet been formally interviewed.
A crime scene has been established and police have since contacted the child's parents.
The boy was picked up by his father from the scene.
Aerials of the scene showed a body covered with white sheets being put in an ambulance.