A Lake County resident may be one of several people affected by a food poisoning outbreak connected to a Mexican restaurant in Chicago, reports the News Sun.

The Perez Mexican Food restaurant was closed following an inspection last Friday that revealed violations, including some related to the temperature of food at the facility, according to Tim Hadac, a spokesman for the Chicago Department of Public Health.

Hadac said the department is investigating an apparent food-related illness outbreak suspected to have originated at the restaurant that has affected less than a dozen people.

The Lake County Health Department confirmed Wednesday that a Lake County resident being treated for salmonella at Condell Medical Center in Libertyville. The woman told officials she ate at the restaurant the day she became ill.