The FDA has classified its recall of eggs sold under Costco's Kirkland brand as a Class I recall, a designation reserved for instances of the highest potential health risk — including death.

In November, Costco recalled nearly 260,000 eggs sold under the Kirkland Signature brand in 25 stores nationwide. The eggs landed on shelves in Alabama, North Carolina, Georgia, South Carolina and Tennessee starting Nov. 22, according to the company.

A recall on eggs from a New York-based farm sold at Costco stores been raised to the highest risk level due to the risk of severe illness or even death stemming from possible salmonella exposure, federal food regulators said.