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 some third party websites violates the bloc's privacy laws.

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 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.