British Airways has revealed its flights at Heathrow Airport are being affected by a “technical issue”.
The airline apologised and said it is investigating the ongoing technical issues.
A BA spokesperson said: “We’re investigating and working hard to resolve a technical issue and apologise for the inconvenience.
“We will provide further updates as quickly as possible.”
The airline issued the statement after a number of passengers from Heathrow expressed frustrations towards the company on social media.
It is the latest in a series of damaging IT problems for British Airways, the most recent of which saw the airline cancel several short-haul flights from Heathrow.
In January, the air service was among the airlines to cancel US flights due to 5G safety concerns.