It's not every day that you get to hear a sonic boom but that's exactly what happened in the early hours of Sunday morning in southern England.
Reports suggest that at around 4:20 am, a noise generated by two Royal Air Force Typhoons created a sound that was likened to an 'explosion', apparently shaking houses and causing alarms and sirens to go off.
The jets had taken off from Coningsby, Lincolnshire to try and intercept an unresponsive aircraft and although it is not clear where the sonic book took place, it was heard as far away as London, Hertfordshire and Bedfordshire.
On Twitter, the Metropolitan Police confirmed that it was a 'sonic boom' and there was 'no cause for concern'.
We are aware of reports of a loud bang in the north London area.
There are no reports of an explosion and police a… https://t.co/hsM9My2SNY