RESTAURANTS

Jack in the Box Owners Sue Parent: Foodmaker Inc., company linked to January’s lethal outbreak of food poisoning in the Pacific Northwest, said it is being sued by the owners of 325 Jack in the Boxes. The franchises that filed suit represent more than one-quarter of Foodmaker’s Jack in the Box chain. Foodmaker said it will defend itself against the suit. Jack in the Box hamburgers were allegedly responsible for an outbreak of E. coli bacteria that infected about 500 people and killed three children, authorities said. Foodmaker’s statement did not say on what ground the franchises’ suit was filed or what damages they seek.