Pork carnitas products sent to Aldi grocery stores nationwide may be contaminated with pieces of metal, according to a release by the U.S. Department of Agriculture's Food Safety and Inspection Service.

Carnitas made for Aldi by one of the nation’s largest food producers “may be contaminated with foreign material, specifically pieces of metal .”

The producers of the frozen food discovered the issue during routine checks that uncovered equipment damage that may have contaminated the product with pieces of metal