The Food and Drug Administration said it found bacteria in a Kellogg Co. (K) Atlanta manufacturing plant and warned the company about sanitation violations.

In a Jan. 27 warning letter, the FDA said it found the presence of the bacterium listeria monocytogenes in at least three places inside the plant, including the wheels of a forklift. The warning letter was posted on the FDA’s Web site Tuesday.

The FDA inspected the Atlanta plant last October after a batch of Eggo buttermilk waffles tested positive for listeria monocytogenes, a bacterium that can cause foodborne illness.

"During our inspection, we documented conditions and practices that may lead to contamination of your products with pathogens such as L. monocytogenes," the FDA said.