The Chattanooga Police Department provided an example of an untampered gas pump next to a tampered one. (Photos: Contributed)

After recently warning area residents about skimming devices found at area gas station pumps, Chattanooga Police Department officials said they've caught two suspects "red-handed."

The suspects were attaching the devices—which memorize account information and leave those who use the pumps open to identify theft—at a Mapco at Highway 153 and Gadd Road, according to a CPD news release. 

The skimmers can be found on gas pumps and automated teller machines, and transmit information through Bluetooth technology.

Police said the suspects are part of a "multistate, highly organized crime" ring.

"Two suspects are in custody, along with more devices and two laptops that are pending forensic examination," according to a CPD statement. "The Secret Service is now involved as a result of the above."

Last week, the CPD offered advice to help avoid becoming a victim:

—If an anti-tampering seal is broken, contact the store management immediately, and do not use the machine.

—Use debit cards as credit since credit cards do not require a PIN. This way, the citizen has more protection.

—Cover the buttons while entering in PIN numbers.

—Monitor account(s) daily online and report fraudulent activity to the bank immediately.

—Ask to pair geolocation software with your card. This feature tracks the location of both cards and phones.

—Make payments inside with the cashier.

Click here to learn more from our partners at NewsChannel 9.