Minnesota State officials are advising consumers not to eat sprouts from Minneapolis-based Calco Sprouts. The Minnesota Department of Agriculture says they may be contaminated with Listeria bacteria. Officials say the contamination was first detected in a sample collected during a routine store inspection. Investigators are now working to determine the source of the contamination. There are no reports of illnesses from the sprouts. Calco Sprouts grew and packaged the sprouts, which include radish, alfalfa and bean sprouts. They were distributed to the retail stores and restaurants around the state. The Ag Department says the company has issued a voluntary recall and is cooperating with the investigation. Consumers are asked to throw out any Calco sprouts they may have.