The Kewaunee County Sheriff’s Department spent part of Thursday notifying all gas stations in the county that an electronic credit card reading device, or “skimmer,” had been found in a fuel pump in the county.

According to a news release, the department got a call around 12:30 p.m. that a business had found skimmers inside two of their pumps.

It appeared that the devices had been installed sometime during the early morning hours Thursday. The release did not identify the business.

Deputies and other local law enforcement agencies notified all fuel-point services in the area to determine the extent of this activity within Kewaunee County. By Friday afternoon the department announced that no other skimmers had been located within the county.

The department released a grainy surveillance camera photo of a possible suspect vehicle and asked for the public’s help.

“Until further notice, we are asking the public to please conduct payment for fuel purchases at the service counter within the respective business,” the news release said. “Also, please monitor any and all transactions taking place on your personal credit and/or debit cards. Please report any suspected fraudulent transactions to your financial institution.”