Ryanair Holdings Plc’s processing of personal data will be reviewed by Ireland’s data protection regulator after some customers complained about the airline asking for additional identity verification for tickets bought on third-party booking websites.

Ireland's Data Protection Commissioner (DPC) opened an EU-wide probe on Friday into whether Ryanair's use of facial recognition technology to verify the identity of customers booking through third party websites violates the bloc's privacy laws.

Ireland's data watchdog said Friday it will probe whether budget airline Ryanair's use of facial recognition to check the identity of customers booking through third-party websites violates EU privacy laws.

Some Ryanair customers have to undergo facial recognition after booking flights. The Irish data protection authority is investigating whether this is permitted.

The Data Protection Commission has opened an EU-wide probe into whether Ryanair’s use of facial recognition technology to verify the identity of customers booking through third party websites violates the bloc’s privacy laws.