The companies involved are Darwin's Natural and Zoologics, Raws for Paws Ground Turkey Pet Food, Redbarn Pet Products, and Smokehouse Pet Products.

Four dog food companies have issued recalls after reports of salmonella contamination.

The contamination was discovered after reports of pets dying or falling ill, according to Syracuse.com citing USA Today. The companies involved are Darwin's Natural and Zoologics, Raws for Paws Ground Turkey Pet Food, Redbarn Pet Products, and Smokehouse Pet Products.

The FDA is urging everyone not to feed their pets the food and to talk to their health care provider or veterinarian if they believe they or their pet has become ill from the contaminated food.