Supplies of Walkers crisps have been disrupted by an IT upgrade. The Leicester-based crisp giant confirmed products including multipacks of ready salted, Quavers and Wotsits had been affected.
A number of these are currently unavailable on the Tesco website and there are reports of empty shelves in some shops, reports BBC.
A spokeswoman said the firm was “working round the clock” to increase the supply to stores across the UK.
She added: “We are currently experiencing disruption to the supply of some of our Walkers snacks products, as a result of a recent IT system upgrade.
“We’re very sorry for the inconvenience.