TWO supermarket giants have ordered a mass recall of products which may contain "small pieces of metal".

Sainsbury's said it was recalling its: Be Good to Yourself Potato Salad, Sainsbury’s Potato Salad 180g/300g/500g and Sainsbury’s Deli-Style Coleslaw & Potato Salad 500g.

Tesco is recalling its Tesco Finest Charlotte Potato Salad 275g, Tesco Finest Coleslaw and Potato Salad 400g, Tesco Potato Salad 300g/600g, Tesco Healthy Living Salad 300g and Tesco Coleslaw and Potato Salad Twin Pack 500g.

Those who have already purchased any of the products listed have been told not to eat them and return them to a store for a full refund.

The items have been removed from the store shelves as a precaution.

Speaking about the Sainsbury's products, a spokesman for the Food Agency said: "If you have bought one of these products, do not eat it.

"Instead, return it to the store from where it was bought for a full refund.

"Sainsbury's has recalled the products listed above and is displaying point-of-sale recall notices in stores.

"These notices tell customers what actions to take if they have purchased the product. No other Sainsbury’s products are known to be affected."

The spokesman repeated the warnings for the Tesco products.

"No other Tesco products are known to be affected," he added.