Nearly 2 million pounds of "fully cooked" chicken products are being recalled after a customer complained that the ready-to-eat product was actually undercooked.

The U.S. Department of Agriculture's Food Safety and Inspection Service on Sunday greatly expanded a recall of pre-cooked chicken products produced under the National Steak and Poultry and Hormel brands.

The recall notice was first issued last month after a customer complained on Nov. 28 that ready-to-eat chicken from the company appeared to be undercooked. If undercooked, the chicken could provide the right environment for bacterial pathogens to thrive, according to the USDA.

No illnesses have been reported.

The pre-cooked chicken strips, cubes and other products were sold nationwide to various food service companies and directly to customers through National Steak and Poultry's monthly dock sale. The affected products were sold in cases that bear the establishment No. "P-6010T" inside the USDA mark of inspection.

The recalled chicken was produced between Aug. 20, 2016 and Nov. 30, 2016.

See the full list of recalled products