Coffee giants Costa are recalling one of their products due to undeclared allergens.

Costa Coffee is recalling Millionaire Mallow Bites because some of the products may not have the correct allergen labelling information.

Some of this product has been mistakenly labelled as Cornflake Cluster, which would not mention that they contain egg and wheat.

The Food Standards Agency says "the product is a possible health risk for anyone with an allergy or intolerance to egg, wheat or gluten".

The regulator offered the following advice to customers: "If you have bought the above product and have an allergy or intolerance to egg, wheat or gluten, do not eat it.

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