SAINSBURY'S have issued an urgent warning to customers after discovering a brand of breakfast biscuits does not declare an ingredient which can cause severe allergic reaction.

Both the coconut and yogurt filled and the cocoa filled items are understood to contain sesame, but the ingredient is not listed on the pack of eight.

Glasgow Times:

Credit: Sainsbury's

Anyone who bought the products and suffers from an allergy or intolerance to sesame has been urged to return the biscuits to a Sainsbury's store where they will receive a full refund.

An allergic reaction to sesame can be as serious as nut allergies, with sufferers experiencing difficulties in breathing, vomiting and a low pulse.