A sonic boom was heard across Herts and surrounding counties this afternoon (Image: Nick Blacow)
A loud bang caused doors to shake across the county this afternoon.
The boom is believed to have happened when an RAF fighter plane was scrambled from RAF Coningsby, breaking the sound barrier.
Details of the incident are not yet known, but RAF jets are only given permission to go supersonic in emergencies, usually when they are required to intercept another aircraft.
Did you hear the boom? Let us know your experience at hertsnews@archant.co.uk.
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