A five-year-old girl has died in hospital after falling from a third-floor window of a Sydney unit block.
Paramedics were called to the unit in Curtis St at Caringbah, in Sydney's south, at 1.42pm (AEDT) on Saturday, finding the girl unconscious.
She is believed to have accidentally fallen through a fly screen on the window, plunging eight metres to the ground below.
She was rushed to St George Hospital with critical head injuries but died at 8pm (AEDT), police said.
Police said the incident was being investigated and the girl's mother, aged in her 20s, was at home at the time.
"It's understood a five-year-old girl had accidentally fallen about eight metres from a window," police said in a statement on Saturday.
NRMA CareFlight spokesman Ian Badham said the child and the screen fell at the same time.
"We don't know if she was leaning against it or quite what happened but the flyscreen has given way and she has fallen," he said.
It is the fourth time in as many months that a Sydney child has been seriously injured after falling through a window.
In January a four-year-old boy suffered a broken leg when he fell from a second-storey window.
He was playing in his Liverpool home in south-west Sydney when he fell against the flyscreen, which gave way, authorities said at the time.
In December a three-year-old boy was rushed to hospital with suspected head and internal injuries after falling from the third floor of his Bankstown unit.
A four-year-old boy fractured his skull in a similar incident at Berowra, in Sydney's north, in November.
A report on the girl's death is being prepared for the coroner.