BERKELEY HEIGHTS, N.J. (CBSNewYork)Stop and Shop has issued a warning to New Jersey customers.

The supermarket chain says credit card skimming devices were found attached to self-checkout registers at the following three locations:

READ MORE: NYPD: Wounded Officer Wilbert Mora Transferred To NYU Langone Medical Center, Still In Critical Condition

A skimmer was also found at the Stop and Shop on Old King’s Highway North in Darien, Connecticut.

READ MORE: Nets Lose Shootout In Minneapolis, Fall To 2-2 Since Durant Injury

The company says it’s unclear if any personal information was stolen before the devices were found.

Police are reviewing store surveillance video to identify suspects.

MORE NEWS: NYPD Officer Jason Rivera's Wake To Be Held Thursday At St. Patrick's Cathedral

For more information, visit stopandshop.com/news-media.