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DURANGO, COLO. (AP) -- Authorities say they aren't giving up their search for a 13-year-old boy missing for 12 days in southwest Colorado.

A task force of 50 members has been going door to door since Tuesday looking for any information that could help them find the boy.

On Thursday, authorities searched the home of the boy's father because it's the last place Dylan Redwine was seen before he disappeared.

Authorities say it was just a precaution because Mark Redwine has previously allowed investigators to search his property.

Dylan Redwine was visiting his dad for Thanksgiving as part of a court order. He lives with his divorced mother in Colorado Springs.

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