A 5-year-old girl is in critical condition and two others are severely ill after eating a supermarket potato salad product infected with O-157 E. coli, Saitama Prefecture said Monday.

The victims all ate potato salad sold at the Shokusaikan Marche Kagohara supermarket in the city of Kumagaya, Saitama Prefecture, the prefecture said.

In addition to the girl, who remains unconscious, a 4-year-old boy and a 60-year-old woman have been hospitalized. All three are not expected to be discharged soon.