Brown and white beagle with red collar

I lost my dog yesterday around 3pm near the Scottsbluff Public Library on Broadway. He bolted after a squirrel and slipped out of his red collar; I haven't seen him since. He's a tan and white beagle mix, about 25 pounds, with a small white chest patch and a tiny scar behind his right ear, and he wears a blue nylon collar with a brass tag that says 'Milo' and my number. I'm really worried—this dog is my constant buddy and I can't stop thinking about him. If anyone spots him, please text or call; I’d be forever grateful to bring him home.