British Airways is experiencing delays in its flight operations due to technical issues affecting some of its computer systems. The disruptions began around 17:00 on Monday, causing passengers to report long waits at airports both in the UK and internationally. While no flights have been cancelled, estimates suggest that tens of thousands of passengers may be impacted, with delays ranging from one to two hours. The airline is working to resolve these issues, although there are concerns about potential knock-on effects for flights scheduled for Tuesday.