PLATTSMOUTH, Neb. (AP) — Southeast Nebraska law enforcement officials are warning businesses and the public to be on the lookout for counterfeit cash. The Plattsmouth Police Department issued the warning after fake $100 and $20 bills were found at local businesses in recent days.

Police tell Omaha television station WOWT that they have no leads on who is responsible for the counterfeit money, or if the bills went through several hands unknowingly.

Police Chief Steve Rathman says the bills were discovered during the time money was being counted, not at the time of payment.

Police say the bills are being forwarded to the U.S. Secret Service.