MIDDLETOWN, Ohio -- Authorities said a robber used a cup of hot coffee to rob a United Dairy Farmers store in Middletown.

Police said the robber grabbed a cup of hot coffee, followed the clerk into a back room, where he poured the coffee on her back. Officers said the robber then hit the clerk in the head before stealing out of the cash register.

Investigators said before the robber left the store, he hit another clerk.

The clerk said the robber may be a regular customer at the store.