Mareeba, Queensland: Desperate search for two primary school aged children who have been missing for four days

There is a desperate search for two young children who disappeared four days ago.

Queensland police said the 11-year-old girl and a 10-year-old boy, who know each other, have been missing since Thursday in Mareeba, just west of Cairns.

Police are looking for the two children who are believed to be in the Cairns or Tablelands area.

Police are concerned about their welfare due to their young age.

Two known primary school-age children have been missing in Mareeba since Thursday

They look Caucasian and have a slim build.

The girl is about 150 cm tall with brown hair and green eyes and the boy is 145 cm tall with blond hair and blue eyes.

Investigators are asking anyone with information about their whereabouts to contact police or Crime Stoppers on 1800 333 000.