An eleven-year-old boy has died suddenly in Doomadgee, in north-west Queensland.
Police said the boy was taken to the remote Gulf community's hospital just before 4am on Tuesday, but could not be saved.
Acting inspector of the Mount Isa Police Department Cheryl Sayer said the boy had been socialising with other juveniles before he was brought to the hospital.
Five additional police officers from Mount Isa, including detectives from the Child Protection and Investigation Unit, were brought in to assist ongoing investigations, Inspector Sayer said.
"We want to pass on our condolences to the family members and to the community in general," she said.
"We are also taking care to ensure those other juveniles aren't further traumatised. Investigations are still underway around what has occurred."
Inspector Sayer shot down claims that there was unrest in the community.
"We have no concern at all in regards to any unrest in the community.
"There is a good relationship between the police officers, the community and the family who are getting the support that they need," she said.
North West Hospital Health Service acting chief executive Sean Birgan said Doomadgee Hospital staff did everything they could to assist the boy.
"While we are unable to comment on individual cases due to patient privacy ... our staff did everything in their power to care for this patient and provide family support," Mr Birgan said.
"We offer our sincere condolences to the family at this distressing time.
"We will follow up with the family and provide any assistance and support they may need, as well as reviewing the circumstances of this case over coming days."