Frito-Lay recalled some Lay's Classic Potato Chips sold in the U.S. and online because they may contain undeclared milk.

Some 13 oz. bags of Lay's Classic Potato Chips may contain an undeclared allergen, according to the snack company.

Frito-Lay has issued a limited recall of select 13-oz bags of Lay's Classic Potato Chips due to the potential presence of undeclared milk, which could pose a serious health risk to individuals with a milk allergy.