Fuji Food Products issued a recall in late November for several of its ready-to-eat products due to potential listeria contamination. The affected products include sushi, salads, and spring rolls. They were sold at numerous retailers in 31 states, including 7-Eleven, Bozzuto’s, Food Lion, Giant Eagle, Hannaford, Porky Products, Superior Foods, Supreme Lobster, Trader Joe’s and Walgreens.

The contamination was uncovered during a routine inspection of Fuji’s facility in Brockton, Massachusetts, by the Food and Drug Administration. (FDA) The foods were sold in stores in plastic containers consisting of a tray and a clear plastic lid. Any consumers currently in possession of these foods are urged to throw them out immediately.

“As responsible processors of safe, fresh food for nearly 30 years,” Farrell Hirsch, CEO of Fuji Foods, said in an official statement. “We are addressing this problem vigorously and we apologize to those who are affected by it. We will restart operation only after we have eliminated the cause and the FDA certifies that our facility is once again free of possible contamination.”

This is the first time that Fuji Foods has issued a recall for any of its food products. The company is cooperating with officials to investigate the cause of the issue. No illnesses have yet been reported in relation to the contaminated foods.

Listeria is a bacterium that can cause potentially fatal infections in the elderly, children, or anyone with a generally compromised immune system. Healthy adults can potentially experience symptoms like high fever, severe headache, stiffness, nausea, abdominal pain, and diarrhea, according to the official recall. Listeria can also cause miscarriages or stillbirths in pregnant women.

The affected products were sold in the following states: Alabama, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia and Wisconsin, along with Washington, D.C.

The complete listing of recalled products can be found on the FDA’s official post. Customers with further questions can call (888) 667-1504.