The Guthrie Federal Credit Union now says another skimming device was found at its branch in Sayre.

Kathy Whyte/ WNBF News

According to the credit union website, the skimmers were found at automatic teller machines at the lobby and drive-up on North Elmer Avenue in July.

Last week, officials advised customers and the public through the website and facebook that a skimming device had been used in the lobby ATM July 11 to the 14, July 18 to the 21 and, now, August 1 though 4.  Additionally, the Credit Union says a skimmer was found at the drive-up ATM on North Elmer Avenue July 11 to the 14.

Guthrie FCU says it is working with law enforcement agencies to investigate the incidents.

Customers are being issued new cards and personal identification numbers at no cost.

The credit unit adds customers should monitor their account for any unauthorized transactions and to notify the credit union immediately if discrepancies are found.