Justice Department Investigating Blue Bell Ice Cream Over Listeria Outbreak

— -- The Department of Justice is investigating the Blue Bell ice cream company for its response to a listeria outbreak in April that resulted in three deaths and at least 10 illnesses.

The Civil Division within the Department of Justice is investigating, among other things, whether the Texas-based company knew it was sending contaminated product to market, according to a source familiar with the probe. The investigation is in its early stages, the source told ABC News.

Blue Bell stopped production in April in order to retrain all employees and enhance preventative measures.

The ice cream returned to stores in August.