National Air Traffic Control Services (NATS) have confirmed that a technical problem this afternoon, Friday 12th December, has been reported at Swanwick air traffic control centre.
UK airspace has not been closed, but airspace capacity has been restricted in order to manage the situation. NATS apologise for any delays and their incident response team has been mobilised.
Every possible action is being taken to assist in resolving the situation and to confirm the details.
Further information will be released as it becomes available.