(Hamilton, OH) -- A 20 year old man hasn't been seen since Saturday, and police are worried.  Isaac Powell has medical issues, and has not had his medication since he disappeared.

Powell was last seen leaving his home, on Minster Street, Saturday night around 8.  He told his brother he was going for a walk, but never returned.

Hamilton Police say Powell is 5'4", about 160 pounds, and was last seen wearing a black hooded sweatshirt, dark jeans, and black shoes with yellow stripes.

If you have information on his whereabouts, contact Hamilton Police at 513-785-1300, or call 911.