Some Tesco Bank customers have had their credit cards cancelled following concerns about accounts potentially being compromised.

Tesco Bank said only a tiny proportion of its three million credit card customers have been affected, and they have received texts to alert them and will be sent new cards next week.

The bank cancelled the cards as a "precautionary measure" because of a "suspected third party compromise", but it won't give us any more details on which third party it is.

This incident is similar to others in December last year and in 2016.

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My card has been cancelled – what should I do?

Tesco says if your card has been cancelled, you don't need to do anything, as this is just a precautionary measure.

However, as ever, it may be worth keeping an eye on your account and checking your statements to see if there is any unusual activity.

What does Tesco Bank say?

A Tesco Bank spokesperson said: "We take the security of our customers' accounts very seriously and take every measure possible to protect customers from fraudulent activity.

"As a result of routine industry-wide fraud protection measures, we have reissued a number of credit cards as a precautionary measure.

"We apologise to our customers for any inconvenience caused as a result."

Additional reporting by the Press Association.

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