Tyson Foods Inc. has recalled approximately 11.8 million pounds of frozen chicken strips because the products may be contaminated with metal, .

The government agency said this is an expansion of a were identified.

The affected products were produced between Oct. 1, 2018 and March 8, 2019 and have “Use By Dates” of Oct. 1, 2019 through March 7, 2020, the notice says. They have the establishment number “P-7221” printed on the back of the product package.

The problem was discovered after the agency received two consumer complaints of “extraneous material” in the chicken strip products, according to . The USDA names “pieces of metal” as the possible contaminant. 

Along with chicken products under the Tyson name, the recall also affects select Publix, Kirkwood, Giant Eagle, Hannaford, Food Lion, Best Choice, Great Value, Meijer and Spare Time products. The