Flights in Scotland, Northern Ireland and the north of England are disrupted due to a "technical issue" with air traffic control
National Air Traffic Services (Nats) says engineers are dealing with the issue at the Prestwick Centre
"Airports south of Manchester are broadly unaffected, however flights heading north and flights departing Scottish airports are currently subject to some delay," the Nats adds
It also says the glitch is not related to a software defect that led to the cancellation of 2,000 flights across the UK earlier this month
Edited by Sam Hancock and Charlotte Hadfield
The Manchester Airports Group says there have been delays of up to an hour on some flights at Manchester, with no cancellations so far.
There have also been a few delays at East Midlands airport, which the group also runs. The company says passengers should check with airlines before they travel.
The previous statement from National Air Traffic Services (Nats) says "airports south of Manchester are broadly unaffected".
Here's a new statement from Nats, the air traffic control service:
"Our engineers are continuing to investigate the issue at our Prestwick centre in Scotland," it says.
"Airports south of Manchester are broadly unaffected, however flights heading north and flights departing Scottish airports are currently subject to some delay.
"Passengers should check with their airlines. This is unrelated to the issue two weeks ago. We apologise for the disruption."
This is a breaking story, we'll have more details soon.
Passengers at airports in Scotland and Northern Ireland are facing delays this morning after an air traffic control problem.
A spokesman for National Air Traffic Services (Nats) says:
"We are investigating a technical issue at our Prestwick centre in Scotland.
"To maintain safety, air traffic regulations have been applied to manage traffic demand.
"Engineers are on site investigating and working to resolve the issue. The issue is unrelated to the technical problems experienced earlier this month.
"We apologise for the disruption and any delays to passengers' journeys. Passengers should check with their airline for the latest information on their flight."
We’ll have more on this story as it develops from our teams across the UK.
