Quorn has recalled 12,000 bags of frozen meat-free mince over fears it may contain small pieces of metal.

The Food Standards Agency issued the emergency warning and advised customers not to eat it but to return it to the store for a full refund.

Quorn said: "This immediate recall is a precautionary measure once we became aware that the single batch in question may contain small pieces of metal resulting from an isolated production issue.

"The safety and wellbeing of our customers is our number one priority, which is why we instigated this recall as soon as we became aware of the issue."

The 300g bags, which were only sold in Tesco supermarkets, have a best before date of 31/08/2018 and carry the data code 136331.