STAMFORD - Stamford police say they arrested a Waterbury man Wednesday for using counterfeit money to purchase a car.

Angel Vasquez was also arrested the day before for using the same counterfeit money at a casino, according to authorities.

Police say he found the used car on Craigslist and used 39 fake $100 bills to make the purchase. They say that each of the bills contained the same serial number.

Officials are warning people against accepting cash when selling merchandise. They say that the safest option is to accept a certified bank check.

Businesses that are often paid in cash are also warned to use counterfeit detector pens. The ink would turn black if they are presented with counterfeit money.

The car was found and has since been returned to the seller.