Supermarket shoppers may have bought contaminated meat in the past, the UK's food watchdog has admitted.
The Food Standards Agency (FSA) is investigating allegations that a rogue meat supplier falsely labelled huge quantities of foreign pork as British, and mixed rotting pork with fresh products for processing, which may have ended up on many UK supermarket shelves.
Tesco and Asda are among retailers believed to be caught up in the scandal, which was revealed by trade publication Farmers Weekly. Co-op, Morrisons and Marks & Spencer are also checking meat supplies to make sure they have not been contaminated, although there is no suggestions that any of the retailers were aware of the issue, as they relied on factory audits to ensure the food was safe and correctly labelled.
