Budget airline Ryanair has issued a warning to British tourists that digital boarding passes won’t be accepted at all airports it flies to. The airline spokesperson said that while mobile boarding passes are accepted on flights from the majority of airports, there are some exceptions. Currently, airports in Turkey, Morocco, and Tirana Airport in Albania are unable to accept mobile boarding passes. Passengers traveling from these airports must check-in online and print out a paper boarding pass for their flight(s) or may face additional charges.