Guam - An investigation has been launched into counterfeit money that apparently was used to pay a power bill Wednesday afternoon. Guam Power Authority cashier Leilani Leon Guerrero says a woman tried to pay her bill with cash when she noticed that three of the bills were bogus.

GPA Spokesperson Art Perez says it was because of training that Leon Guerrero was able to identify the fake $20 bills.  "It does have an impact on cash management and part of that procedure to protect that revenue is to have that training, and I'm grateful for that and for Ms. Leon Guerrero's diligence in spotting that," he said.

Perez confirms the Guam Police Department was contacted to further investigate to determine how the customer obtained the fake currency.