Cream dwarf hamster with white chest patch

I lost my cream-colored dwarf hamster named Niko yesterday around 3:15pm in Grand Forks, near Main Street by the Grand Forks Public Library. He's tiny, about the size of a walnut, with soft caramel fur and a creamy belly, and there's a tiny white patch on his chest. He doesn't wear a collar, but you can spot a small notch on his left ear if you look closely. This little guy is a rescue and means the world to me; I'm really worried and missing him a lot. If you see him, I'd be grateful to reconnect; you can email me at [email protected] and I can meet you anywhere in Grand Forks to pick him up.