American multinational Tyson Foods is recalling nearly 13,600 kilograms of breaded chicken “Fun Nuggets” after consumers complained of finding metal pieces in the dinosaur-shaped patties.

The nuggets, sold in 820gbags, were produced on September 5 by the Berryville, Arkansas, company. Tyson informed the US Department of Agriculture’s Food Safety and Inspection Service and said it recalled the nuggets voluntarily “out of an abundance of caution”. USDA said there had been only one report of a “minor oral injury associated with consumption of this product”.

The nuggets subject to the recall carry the number P7211 on the back of the package. They were shipped to distributors in Alabama, California, Illinois, Kentucky, Michigan, Ohio, Tennessee, Virginia and Wisconsin to be passed on to retailers.

The USDA urged consumers with the nuggets in their freezers to throw them out or return them to the place of purchase.