Jason’s Deli is warning customers that their payment card information may be compromised after a possible data breach.

According to a statement on the company’s website, “a large quantity of payment card information had appeared for sale on the ‘dark web,’ and that an analysis of the data indicated that at least a portion of the data may have come from various Jason’s Deli locations.”

Jason’s Deli said it is investigating the potential breach, which occurred on December 22.

The company advises customers to “monitor their payment card accounts carefully and report any suspicious activity to their card issuer,” according to the statement.

Concerned customers can contact Jason’s Deli at customer.service@jasonsdeli.com or at 409-838-1976.

Jason’s Deli has one Lubbock location at 4001 S. Loop 289.