(Stock photo: U.S currency)Businesses in Niagara Region are being warned to be extra vigilant when accepting U.S currency after “multiple incidents” of counterfeit money have been reported. Police launched an investigation after a woman used fake $20 and $50 U.S bills to make a purchase at the Walmart on Geneva St. in St. Catharines. The woman then fled to a waiting grey Honda Civic with an Ontario license plate being driven by a male. Investigators believe the suspect also used fake money to purchase high-end electronic and gaming items as well as expensive clothing at The Bay on Glendale Ave. and a second Walmart location on Oakwood Dr. in Niagara Falls. Police describe the woman as black, five-foot-one to five-foot-three in height, between 150-170 lbs and 20 to 30 years of age. She was wearing a tight black dress, white sandals, a gold chain necklace, with a red or maroon purse.The man is described by police as black, 20 to 30 years of age, with a piercing in his left ear.Anyone having information regarding the suspects or motor vehicle in this matter is asked to call police at (905) 688-4111.