LONDON, June 7 (Reuters) - Three people have died in hospital in northern England and three more are seriously ill after an outbreak of listeria potentially linked to pre-packaged sandwiches, Public Health England (PHE) said on Friday.
The deaths happened at Manchester University NHS Foundation Trust and Aintree University Hospital NHS Foundation Trust hospitals, it added in a statement on its website.
The Good Food Chain company, based in Staffordshire, central England, has voluntarily ceased production while an investigation takes place, PHE said.
(Reporting By Andrew MacAskill; editing by Stephen Addison)
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