British Airways computer systems crash across the WORLD sparking chaos at airports with huge queues and passengers stuck on planes for hours

British Airways computer systems have crashed across the world, sparking massive queues (centre) and chaos at British airports. Furious passengers are complaining of 'huge queues' at check-in (left) and added that they cannot use the website or the app - which is causing them to miss their flights. Fliers stuck in the US, Rome, Belfast, Lisbon and at Heathrow Airport among other places vented that they were had been waiting on their planes for more than two hours (right). They spoke of 'disgraceful' customer service as staff gave out 'no information', while others warned that it was 'carnage' (left, inset) and warned others to stay away from airports. The airline said it was 'experiencing a global system outage' and added it was 'working to resolve the problem as quickly as possible'. It was unclear whether cyber hackers could be behind the outage.