British Airways is warning that another 185,000 customers may have had their payment card details stolen in a data breach.

he airline says that customers who made reward bookings with payment cards between April 21 and July 28 are at risk.

It is contacting the holders of 77,000 payment cards to warn that their names, billing addresses, email addresses, and card payment information, including card number, expiry date and CVV, have potentially been compromised. A further 108,000 have had the same information compromised minus the CVV.

BA only discovered the breach while investigating a similar hack that was carried out later but uncovered in early September. That attack was initially thought to have involved the card details of 380,000 customers, although BA has now revised this down to 244,000.

The company says that it has had no verified cases of fraud related to that incident and that there is no "conclusive evidence" that data was removed from its systems in the newly announced hack.

However, it is promising to contact everyone involved by Friday afternoon, advising them to speak to their bank or card provider.