Italy's civil aviation authority said today it was preparing to impose sanctions on Ryanair over its handling of mass cancellations of flights last month.
"The process of sanctions for failing to inform passengers has been started," a spokesperson for ENAC said, giving no details.
Ryanair last month announced a wave of flight cancellations caused by a shortage of pilots. It is expected to affect more than 700,000 passengers over the coming months.
Britain's aviation regulator said last week that Ryanair had "capitulated" to pressure to inform passengers hit by flight cancellations of their rights, and would keep pushing the airline to fully compensate them.
Read: Cancelled flight? You may be entitled to compensation