U.S. and Canadian health officials are trying to find the source of an ongoing salmonella outbreak affecting an unknown number of turkey products.

The Canadian Food Inspection Agency issued a food recall warning Friday evening for Janes Pub Style Chicken Burgers after a salmonella outbreak was linked to 25 illnesses across the country.

The Canadian Food Inspection Agency is working to reduce salmonellosis cases that often occur when consumers eat undercooked chicken.