A man wanted for contaminating salad bars and produce sections at grocery stores across Michigan is now behind bars.

According to FOX2 in Detroit, an Ann Arbor man was arrested by the FBI after being caught contaminating food bars at several grocery stores.  Investigators say he sprayed a mixture of Tomcat mice poison, hand cleaner and water on produce at three Ann Arbor grocery stores:

• Whole Foods Market -- 990 W. Eisenhower Parkway -- Ann Arbor, MI
• Meijer -- 3145 Ann Arbor - Saline Road -- Ann Arbor, MI
• Plum Market -- 375 North Maple Road -- Ann Arbor, MI

"Investigators are currently coordinating with State of Michigan and Washtenaw County Health Officials to determine the extent of any contamination and the threat to the public."-FOX2