PHOENIX -- If you received a phone call from an unknown number and returned the call, you may want to check your phone bill.
According to the Yuma Police Department, a new scam is costing cell phone users a lot of money.
Police said the scam involves a phone call where the phone rings only one time. The scammers then hope the owner gets curious enough to call back to see who it was.
When they do, they begin racking up the charges. Some reported rates as high as $9 per minute charged to their account. Some of the numbers originated in the Caribbean and charged an international calling fee of $19.95.
Police said if you receive a call from a number you don't know and the caller does not leave a voice mail, do not return the call.
Anyone who may have been scammed is urged to check their phone bill as soon as possible.