A tomato recall due to risk of salmonella contamination has been designated as Class I, the U.S. Food and Drug Administration's highest warning level, the agency said. The FDA marked the tomato recall affecting three states as Class I, meaning there is a risk of "serious adverse health consequences or death," on May 28.

Last month's recall of fresh tomatoes sold by Williams Farms Repack, LLC or H&C Farms has now been labeled as deadly. The FDA recently upgraded the recall to its most severe statu

The recall of tomatoes distributed in three southern states was upgraded to the most severe warning the agency issues.