Roundy'sOne Wisconsin grocery retailer has taken action after reports of tainted spinach linked to a deadly E. coli outbreak. Milwaukee based Roundy’s has 143 Copps, Pick n Save and Rainbow Foods stores in Wisconsin and Minnesota.

The company has voluntarily pulled all pre-packaged fresh spinach and tossed salads containing spinach in light of the E-coli outbreak. Vivian King with Roundy’s says they took that action even though none of their stores has been mentioned as the source of the bacteria contaminated spinach. She says they did it as a precaution for the safety of their employers and customers.

The FDA is warning people not to eat packaged fresh spinach as investigators try to find the source of E-coli that’s killed one person in Wisconsin and sickened dozens of others here and in at least 8 other states.