Barber Foods is recalling more than 1.7 million pounds of frozen, stuffed chicken products that may be contaminated with Salmonella.

The USDA’s Food Safety and Inspection Service (FSIS) says at least six people in Minnesota and Wisconsin got sick after eating the products between April and late June. The recall was first announced on July 2 and initially involved about 58,000 pounds of Barber Foods chicken products; the recall is now being expanded after more cases of illness were reported.

The recall involves frozen, stuffed, raw chicken packaged in 6 individual pouches per box, in varieties including Chicken Kiev, Chicken Cordon Bleu, Chicken Tenders and Chicken Broccoli Cheese. A complete list is posted on the USDA’s website. The products were manufactured between February 17 and May 20, 2015, and were sold at supermarkets across the U.S. and Canada.

Recalled packages have a use by/sell by date of April 28, 2016, May 20, 2016, or July 21, 2016, and a Lot Code number 0950292102, 0950512101, or 0951132202.