The list of recalled beef products produced by Edmonton-based XL Food has been expanded yet again following a possible E.coli contamination.

The contamination was first announced by the Canadian Food Inspection Agency last week and has since been expanded six times, as the list of products possibly contaminated with the bacterium grows.

More than 210 ground beef products have been affected by the recall.

On Sunday, the CFIA warned that there is a strong possibility more products will be added to the list as the agency’s investigation continues.

The CFIA said Sobeys, Foodland, IGA, and Douglas Meats stores in the Prairie provinces, Ontario, the Maritimes and some Big Way and Super A stores are grocers that carry the possibly contaminated products.

The latest warning includes unlabelled ground beef products sold between Aug. 24 through Sept. 16, at stores that may include small retailers, local meat markets and butcher shops.

Consumers who are unsure if they purchased the affected beef are asked to check with their grocer.

“If you are unsure whether a product is part of the recall, the safest course of action is to throw it away,” read a statement on the CFIA website.

The agency said there have been no reported illnesses linked to the beef.

CFIA spokesperson Garfield Balsom told The Canadian Press that notice of the positive findings came from U.S. inspectors on Sept. 3 -- nearly two weeks before the CFIA began issuing advisories about ground beef products produced at XL Foods.

Balsom said Friday that XL initiated the recall on its own, insisting it was not ordered as a result of test results from the Food Safety Inspection Service of the U.S. Drug Authority.

With files from The Canadian Press