A woman was barred from boarding a flight with her husband and son after a member of Ryanair staff noticed that her passport was issued more than 10 years ago. Ana Tiganescu has six months left before her UK passport expires.
But the rules for passports have been affected by the UK's withdrawal from the EU. The University of Leeds scientist was set for a trip to Faro, Portugal, flying from Leeds Bradford Airport.
Since Brexit, passport requirements have been agreed with each of the member states. The majority - Portugal included - require travellers to have at least six months until the expiration date and to have been issued no more than 10 years ago.
