quentin sommerville, bbc news, eastern ukraine. the head of air traffic services, has confirmed a technical failure, led to more than a quarter of uk flights being cancelled yesterday, and not a cyber attack. martin rolfe, says flight information received by the national air traffic services, triggered a suspension of automatic systems, which meant data had to be managed manually. thousands of travellers have been affected, and it could be several days before flight schedules, are back to normal. more than 1800 flights have been affected so far. the transport secretary, mark harper, says it's the worst incident of its kind to hit air traffic control, in nearly a decade. here's katy austin. the shock waves from yesterday continued to be felt, as these passengers at liverpool this morning discovered. we booked to take the kids to dublin for the day and just got