Three hospital patients have died in an outbreak of listeria linked to pre-packed sandwiches.
Public Health England (PHE) said the victims were among six patients affected in England and the deaths occurred in Manchester and Liverpool.
Sandwiches and salads linked to the outbreak have been withdrawn and supplier The Good Food Chain has voluntarily ceased production.
The BBC has approached The Good Food Chain for comment.
Two of the patients who died were being treated at Manchester Royal Infirmary. The third patient was in the care of Aintree University Hospital NHS Foundation Trust.
PHE said the sandwiches and salads affected are no longer being produced while investigations continue.
It added the products were withdrawn from hospitals when the links to the infections were first identified.
Dr Nick Phin, deputy director at the National Infection Service at PHE said: “To date, there have been no associated cases identified outside healthcare organisations, and any risk to the public is low.”
PHE said The Good Food Chain had been supplied with meat produced by North Country Cooked Meats which subsequently produced a positive test result for the outbreak strain of listeria.
This business and North Country Quality Foods, who they distribute through, have also voluntarily ceased production.
The BBC has contacted North Country Quality Foods for comment.