A desperate search is underway for two young children who went missing four days ago.
Queensland Police said the 11-year-old girl and a 10-year-old boy, who know each other, have been missing from Mareeba, just west of Cairns, since Thursday.
Police are searching for the two children who are believed to still be in the Cairns or Tablelands area.
Police are concerned for his well-being due to his young age.
Two primary school children who know each other have been missing from Mareeba since Thursday
They are Caucasian in appearance and have a slim build.
The girl is around 150cm tall with brown hair and green eyes and the boy is 145cm tall with blonde hair and blue eyes.
Investigators are asking anyone with information about his whereabouts to contact police or Crime Stoppers on 1800 333 000.
