Campbell County Investigators are warning area residents of a scamming device which was uncovered at a Lafollette ATM on Sunday. Someone was using the device located at the Y-12 Federal Credit Union on Jackboro Pike when the chip reader pulled off into his hand while he was removing his card from the teller machine. The victim immediately reported it to authorities who now have the device. Anyone that has used this designated ATM recently needs to get in touch with the bank at 865-482-1043.