A Twin Cities maker of popular snacks is recalling one of its products and shutting down production of the item after a salmonella contamination was detected.

The recall, announced Monday by Waymouth Farms, of New Hope, covers various-sized packages of Good Sense raw pine nuts distributed nationwide through stores and by mail order. No illnesses have been reported.

"Routine testing by the [U.S. Food and Drug Administration] revealed the presence of salmonella in a 4-ounce package," the recall announcement read. "Production of the pine nuts has been suspended while Waymouth Farms Inc. continues their investigation as to the source of the problem."

The affected pine nuts were sold in 4-ounce plastic tubs and 3-, 4- and 15-ounce zipper bags. They were also sold in bulk self-service displays at grocery stores.

Salmonella can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. Healthy people infected with salmonella often suffer from fever, diarrhea, nausea, vomiting and abdominal pain. Although rare, infection can lead to more severe illnesses such as arterial infections, endocarditis and arthritis.

Customers who have any packages of the pine nuts are urged to return them to the retailer for a full refund. For a list of packaging sizes, UPC codes and expiration dates connected to the recall, visit http://1.usa.gov/1P2klvp. For information, call Waymouth Farms at 1-800-527-0094 during regular business hours.

Family-owned Waymouth Farms has been operating since the mid-1970s and offers various fruit, nut and trail mix snacks.