Costa is recalling several food items over fears they may contain small stones.

The coffee shop chain has issued a safety alert for four wraps and sandwich snacks because they could present a choking hazard.

All the items have been declared unsafe to eat by the Food Standards Agency, which has also issued its own alert and recall.

The items affected are:

Chicken & Bacon Caesar Wrap (use by dates of September 6, 7 and 8)

Southern Fried Chicken Wrap (use by dates of September 6, 7 and 8)

Chicken Salad Sandwich (use by dates of September 6, 7 and 8)

BLT sandwich (use by dates of September 6, 7 and 8)

Customers who have bought any of the items above but not yet eaten them, should return them to their nearest branch for a full refund.

Anyone in need of further help should telephone Costa on 0333 003 5883.