The U.S. Department of Agriculture has issued a public health alert for a frozen burrito sold at Costco because officials claim it contains an undeclared allergen.

A product labeled as Red’s Steak Cilantro and Lime Burrito, which was produced on June 19, contains egg not declared on its label.

The burritos were shipped to Costco stores in Illinois, Michigan and Minnesota.

A recall for the product wasn’t issued because the burritos are no longer for sale, but the USDA said they could be inside customers’ freezers.

The problem was discovered after a consumer flagged the issue to the company after they realized there was egg inside the burrito, and the company notified the USDA’s Food Safety and Inspection Service.

No adverse reactions have been reported after eating the burrito.

The burritos were both packaged individually and sold 10 in a 3 lb, 2 oz. carton.

The product lots for the affected burritos include: L1 SD6170 1503, L1 SD6170 1535, L1 SD6170 1606, L1 SD6170 1639, L1 SD6170 1717, L1 SD6170 1750, L1 SD6170 1831, L1 SD6170 1908, L1 SD6170 1954, L1 SD6170 2031, L1 SD6170 2108, and L1 SD6170 2130 on the side of the label.

They also have “EST. 46069” inside the USDA mark of inspection.

Anyone who finds one of the burritos in their freezer is urged to throw them out or return them to where they were bought.

Red’s and Costco did not immediately respond to FOX Business’ requests for comment.