Walkers has recalled a batch of ready salted crisps because of a packaging error.

A limited number of Walkers 6-pack ready salted crisps had been packed with smoky bacon flavour crisps, making them unsuitable for people with a soya or lactose allergy, Walkers said.

The affected product is Walkers 6-pack Ready Salted Crisps with a best before date of 15/09/07, batch code GBB 581 177.