TORONTO - Canadians are being warned not to eat some fresh and frozen ground beef products.

The Canadian Food Inspection Agency says the meat may contain E. coli bacteria, which can be deadly in some cases.

There have been five reported illnesses connected with the tainted beef.

Affected fresh ground beef was sold in Safeway and some independent grocery stores in British Columbia and Alberta between May 24 and June 5.

Consumers are also being told to avoid frozen beef patties sold under the Butcher's Cut and Sunny Dawn brand names.

The contaminated patties were sold after May 24 in Safeway and independent stores in Western Canada, Yukon, Northwest Territories, and Ontario west of Thunder Bay.