As European regulators work to help identify the origin of the recent outbreak of Hepatitis A in Germany, the Netherlands and Poland, the Coop in Denmark is pulling frozen strawberries after 52 people were sickened across Scandinavia in possibly related outbreaks.

The Copenhagen Post reports that frozen strawberries are suspected of being the source of an outbreak of 52 cases of hepatitis A across Scandinavia, leading Coop to withdraw them from its stores.

The berries are from Egypt and Morocco and sold under the names “Sund Fornuft Jordbær”, “Irma Jordbær” and “Coop Jordbær”, and have been sold by Fakta, Irma, Dagli´Brugsen, LokalBrugsen, Kvickly and SuperBrugsen.

“We are not sure these berries are to blame for the outbreak but we dare not risk the health of our customers,” Coop spokesperson Karin Frøidt told Jyllands-Posten newspaper. “We are [withdrawing the berries] to be extra safe.”

Meanwhile, the European Food Safety Authority says 15 sickened people had travelled to the autonomous provinces of Trento and Bolzano, in Italy and that preliminary investigations have identified frozen berries as the most likely source of infection.