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: Attorney Says Current Whereabouts Of Brian Laundrie, Gabby Petito's Fiancé, Are Unknown

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

READ MORE: Nearly 200 People Being Released From Rikers After Gov. Hochul Signs 'Less Is More Act,' Calls N.Y.'s Incarceration Rate 'A Point Of Shame'

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: After Almost 2 Years, New York Philharmonic Returns For 180th Season

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