Officials from the USDA say that a Detroit-based business is recalling about 1.8 million pounds of ground beef products sold for restaurant use in four states that could be contaminated with E. coli.

The U.S. Department of Agriculture's Food Safety and Inspection Service announced today that affected Wolverine Packing Co. products were produced between March 31 and April 18 and were shipped to distributors in Massachusetts, Michigan, Missouri, and Ohio.

The Food Safety and Inspection Service says 11 illnesses have been identified so far.

The products bear the establishment number "EST. 2574B" and will have a production date code in the format "Packing Nos: MM DD 14" between "03 31 14" and "04 18 14."

For more information, including a link to the full recall list check out the USDA's website.