UPDATED: The two missing children have been found safe and well.
Queensland Police are seeking urgent assistance to find two missing children who they believe may be at significant risk.
An 8-year-old boy and 4-year-old-girl were last seen at Harristown at 11:50am and are believed to be travelling with a 30-year-old woman.
The eight-year-old boy is described as Caucasian, with blonde hair and blue eyes.
The four-year-old girl is described as Caucasian with blonde hair.
The woman is described as Caucasian, 160 cms tall with a slim build, blonde hair and brown eyes.
Police would not comment on the relationship between the children and the woman.
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