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.

The Food and Drug Administration is using its most severe notice in a recall of more than 6,000 bags of chips in two states because of “undeclared milk.”

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