Security officers at Heathrow Airport are to take a further eight days of strike action next month in a dispute over pay, Unite has announced.Members of the union will walk out on May 4, 5, 6, 9, 10, 25, 26 and 27.Unite said the strikes will cause "inevitable disruption and delays" at a time when people are expected to be travelling to the UK for the King's coronation.

Security officers at Heathrow Airport are to take a further eight days of strike action next month in a dispute over pay, Unite has announced.Members of the union will walk out on May 4, 5, 6, 9, 10, 25, 26 and 27.Unite said the strikes will cause "inevitable disruption and delays" at a time when people are expected to be travelling to the UK for the King's coronation.