UPDATE: Seth has been found safe and well.
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WA Police are asking for the public's help to find a missing 12-year-old boy.
Seth Patmore left his home in Pinjarra on Friday, October 17 and has not been seen since.
Seth is described as fair skinned, average build, light brown hair and blue eyes.
He was last seen wearing a grey and white Oodie with black pants and white Nike shoes with a red 'tick' on the side.
Seth is known to frequent the Mandurah and Lakelands area.
Concerns are held for his welfare.
Anyone who sees Seth is urged to contact police immediately on 131 444.
Information in relation to his whereabouts or recent movements, can also be reported to Crime Stoppers on 1800 333 000 or www.crimestopperswa.com.au
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