International travellers arriving at UK airports have been warned of long delays as Border Force staff who check passports begin a series of strikes over better pay and working conditions on Friday.
More than 1,000 employees have walked out, affecting passport control desks at Heathrow, Gatwick, Birmingham, Cardiff, Manchester, and Glasgow airports, as well as the port of Newhaven in East Sussex.
The strike will last until early on Monday, before another round of strike action from December 28 until early on December 31.
