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:

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

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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.

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