Almost 60,000 pounds of ground beef products intended for the National School Lunch Program in four states have been recalled according to the USDA Food Safety and Inspection Service.

The beef products shipped in 40-pound cases containing 10-pound chubs of “Fine Ground Beef.” FSIS reports the 58,240-pound shipment was recalled because some of the meat may contain small pieces of plastic.

Shipments marked with the establishment number “Est. 6063A” inside the USDA Mark of Inspection were produced on April 1, 2013 and can be further identified by case code “6063A3091A” or “6063A3091B.” The beef was intended for use by the National School Lunch Program in Arkansas, California, Montana and Texas.

FSIS discovered the problem during an investigation due to customer complaints. FSIS and the company have received no reports of illness or injury due to consumption of these products. Anyone concerned about an illness or injury should contact a health care professional.