NIAGARA FALLS - At least $200 worth of counterfeit $20 and $50 bills have been passed at city businesses since Thursday, police said.

The first incident occurred Thursday at the Cricket Express store on Pine Avenue, where police said two counterfeit $50 bills were passed

Employees of the Tops International store on Niagara Falls Boulevard discovered five counterfeit $20 bills among a large cash payment made Saturday morning by an employee of a bar who was paying utility bills, police said.