The recall from TreeHouse Foods of frozen waffle products sold in stores throughout the United States has broadened due to concerns over listeria contamination. The new recall includes all of the company’s griddle products,

Hundreds of frozen waffle products sold in Canada and the U.S. are being recalled after possible contamination by the Listeria bacteria was detected at an Ontario facility, manufacturer TreeHouse Foods says.

Some products were sold under the brands of major retailers like Kroger, Price Chopper and Walmart. No illnesses so far have been linked to the waffles.