The Co-op has recalled stocks of its Hollow Milk Chocolate Bunny because of possible product tampering.
The high street supermarket chain has found the product to contain a small battery - which clearly makes it unsafe to eat and presents a choking and burns hazard.
No other Co-op products are known to be affected.
Customers should return the product to a Co-op store for a full refund, or contact their Customer Relation Team on 0800 0686 727.
The recall follows a nationwide recall of 165,000 hollow milk chocolate Santa figures just before Christmas, when two alleged tampering incidents took place - one in Suffolk and one in Essex.