Washington, D.C. ? Natural Balance Pet Foods recalled two kinds of pet food after receiving reports of animals vomiting and experiencing kidney problems, the Food and Drug Administration said Monday.

The recall includes all date codes of Venison & Brown Rice Dry Dog Food and Venison & Green Pea Dry Cat Food. The company does not know the cause of the problem, but said it is focused on one particular lot.

Natural Balance Pet Foods is working with the FDA to investigate the matter and is urging consumers to not feed either pet food product to their animals.

Last month, Menu Foods recalled 60 million cans of dog and cat food after the deaths of 16 pets, mostly cats, that ate its products. The FDA said tests indicated the food was contaminated with an industrial chemical, melamine.

FDA spokeswoman Julie Zawisza said the agency had no indication that the Natural Balance case is related to the melamine problem. For more information, visit www.naturalbalance inc.com or www.fda.gov.