British Airways (BA) passengers have reported delayed and cancelled flights due to IT issues with the company's check-in systems.
Images posted on social media showed long queues of holidaymakers on Wednesday morning as well as error messages with the BA app.
A BA spokesman said: "We are experiencing some systems problems this morning which are affecting check-in and flight departures.
"Please check ba.com and manage my booking for the latest flight information, and allow extra time at the airport."
The airline is using back-up and manual systems to try and cope with the issues.
More to follow...
- Press Association