The Food and Drug Administration has newly classified the December recall of some Lay’s Classic Potato Chips sold in Oregon and Washington with the designation reserved for the highest degree of health hazard.

Some 13-ounce bags of Lay's Classic Potato Chips have been recalled due to undeclared milk. No allergic reactions have been reported thus far.

Class I, according to the FDA, means exposure to or consumption of the product could cause "serious adverse health consequences or death."