The Madera County Sheriff's Office is warning people about credit card skimmers that were found at an Oakhurst Valero.
Deputies say the four skimmers were found on April 16 after a report of fraudulent credit card activity.
Upon further investigation, it was discovered the skimmers were Bluetooth capable therefore the suspect that installed it would only need a Bluetooth device to obtain the data stored.
Deputies say they want to remind people that the best way to avoid becoming a victim of these types of scams is to pay inside at the cash register.
This investigation remains ongoing.
If you have information or believe you may be a victim relating to this case, please contact the Madera County Sheriff's Office in Oakhurst at 559-642-3201.