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Tyson Foods has recalled more than 130,000 pounds of precooked chicken nuggets due to a concern that the product may be “contaminated with hard plastic,” the Department of Agriculture’s Food Safety and Inspection Service announced Tuesday.

The Class I recall — which indicates the highest level of risk — applies to the following products:

5-pound bags of Tyson Fully Cooked Panko Chicken Nuggets with a “Best If Used By” date of July 18, 2017 and case code 2006SDL03 and 2006SDL33, and distributed at Costco stores nationally

20-pound packages containing “Spare Time Fully Cooked, Panko Chicken Nuggets, Nugget Shaped Chicken Breast Pattie Fritters With Rib Meat” with a production date of July 18, 2016 and case code 2006SDL03 and shipped for institutional use in Pennsylvania.

Tyson Foods said the recall is the result of customers who discovered plastic material of around 21 millimeters in length and 6.5 millimeters in diameter that probably came from a round, hard plastic rod used in the manufacturing process.

There have been no confirmed reports of injuries or adverse reactions, according to the FSIS notice.