Federal officials have issued a public health alert for a popular pork product sold at Aldi.

The U.S. Department of Agriculture’s Food Safety Inspection Service issued the alert for packaged pork carnitas sold nationwide due to possible contamination with foreign material, including pieces of metal.

There is no recall alert for the carnitas because the products are no longer available for sale, the FSIS said, but still could be in refrigerators or freezers.

The fully cooked pork carnitas products were produced from April 1-2. The label on the 16-ounce package reads “Pork Carnitas Seasoned and Seared Pork with Juices Slow Cooked with Citrus.“

The packaging has use-by dates of June 30 or July 1.

There have been no confirmed reports of injury related to the products, according to the announcement from the FSIS. Anyone concerned about an injury should contact a healthcare provider.

Anyone who has the products should throw them away or return them to Aldi.