“We can confirm that a small civilian aircraft was transmitting inadvertently on an emergency frequency at approximately 18:10.
Two typhoons from the Quick Reaction Alert responded accordingly and authorisation was given from them to go supersonic which resulted in the sonic boom. There was no actual threat to the civilian aircraft and they soon rectified their mistake.”
The QRA team is based at RAF Coningsby in Lincolnshire.
No further information will be released tonight.