Detectives are investigating the sudden death of a two-year-old girl in North Mackay.
The child's mother took her to Mackay Base Hospital about 8pm on Thursday night and the toddler was later declared dead, Detective Acting Inspector Chris Eaton said.
"As part of the investigation, we've identified that the child has been unwell in the days leading up to her death, and that will certainly form part of our investigations," he said.