White Castle recalls several varieties of frozen burgers due to potential listeria

White Castle is voluntary recalling several varieties of its frozen burgers due to possible listeria contamination.
According to the company, some of the packages include six-packs of hamburgers, cheeseburgers, and jalapeno cheeseburgers.
The company says larger 16-pack versions of hamburgers and cheeseburgers are also part of the recall.
The products have best by dates of August 2020.
A White Castle spokesperson says the affected products were not distributed in New Jersey. 
There are no reports of any illnesses.
Consumers are urged to throw the products away and return them for a refund.