A boy and girl have gone missing in far north Queensland.
The 11-year-old girl and 10-year-old boy from Mareeba, west of Cairns, have not been seen since Thursday.
Authorities believe they may be in Cairns or the Tablelands regions.
Police have concerns for their wellbeing due to their ages.
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They are both around 150cm tall and slim.
Anyone with information on their whereabouts has been asked to contact police.