MINNEAPOLIS (WCCO) — There are more positive developments in the case of a dog found starving and abandoned along a western Wisconsin highway.

The Dunn County Humane Society says Gabriel has now gained 18 pounds since a deputy found him near Menomonie last week.

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Gabriel (credit: CBS)

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Gabriel was only about 23 pounds when he arrived, which is less than half of what a dog his size should weigh.

Shelter workers say it’s the worst case of animal abuse they’ve ever seen. Deputies are searching for who’s to blame.

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It will be a few months before Gabriel is healthy enough to be adopted, but there are plenty of other animals waiting to find a home. Here is more information on adoption, and how to donate to help Gabriel’s recovery.