OTTAWA – The Canadian Food Inspection Agency has again expanded its health hazard warning about ground beef products from XL Foods of Alberta.

The warning about the beef sold is a variety of stores across much of the country is due to concerns about possible dangerous E. coli contamination.

The federal agency has not yet said how much meat is involved in the recall, adding there have been no reported illnesses tied to eating the ground beef.

It says the stores include locations of Extra Foods, No Frills, Real Canadian Wholesale Club, Shop Easy, SuperValu, Real Canadian Superstore, Westfair, Your Independent Grocer, Co-op, Costco, Presto, Club Entrepot, Foodland, Sobeys, Giant Tiger, Walmart and Safeway.

Food contaminated with E. coli may cause serious and potentially life-threatening illnesses. Some people may have seizures, strokes or suffer kidney damage.