Four cases of E. coli infections have been identified by Arizona health officials as possibly linked to beef that a California meatpacking company recalled Monday.

The beef was processed by United Food Group LLC of Vernon, Ca. and shipped to retail distribution centers in Arizona, California, Colorado, Oregon and Utah. It was sold at Albertsons, Save-A-Lot, Grocery Outlet, Fry’s, Save-Mart, Smart and Final, Smith’s, and Stater Bros. stores.