Officers say 'concerns are growing' for Niamh, 15, who has been reported missing from Lockerbie.
It is believed she has since travelled to the Edinburgh area.
Cops says Niamh is described as a 15 year old white female, 5 foot 7 tall, average build with long fair hair.
A spokesperson for the force said: "Anyone who may have seen Niamh, or who has any information on her whereabouts is urged to contact Police Scotland via 101 quoting incident number 1149 of 28th February 2023."
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