Salad mixes containing spinach sold under the Hy-Vee label are on the recall list of fresh spinach pulled from shelves because of an E. coli outbreak, reports 9 Eyewitness News of Sioux City, Iowa.

The salad mix is from River Ranch fresh foods in Salinas, California, and are sold under the Hy-Vee label. The mix contains spinach purchased from Natural Selection Foods, whose spinach has been linked to the outbreak.

The company says its organic products had been cleared of contamination, while health officials continue working to pinpoint the bacteria source.