A six-week-old baby has died in hospital after suffering serious burns in Sydney's south-west this afternoon.
The baby was injured after a small fire broke out in the kitchen of the Campbelltown home, NSW Police said in a statement.
An investigation into the incident has found no suspicious circumstances.
The child was found by emergency services about 2:15pm and taken to Campbelltown Hospital but died a short time after arriving.
The incident involving a very young baby was "heartbreaking," NSW Ambulance Chief Superintendent Mark Gibbs said.
"The baby had sustained burns to between 80-90 per cent of its body and this was a very confronting scene for our paramedics," he said.
A second child was assessed for smoke inhalation but did not require further treatment.