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“Sonic boom” heard across Hertfordshire

Noise at 4.20am wakes people from London to Cambridge

Photograph of Typhoon by Defence Images released via Creative Commons BY-SA 2.0

The loud bang heard in the early hours of Sunday morning 1 December was the result of a sonic boom from RAF planes, according to the Metropolitan police.

Thousands of people were woken by the noise and took to social media claiming they’d heard an explosion in their neighbourhood.

Hertfordshire police and fire brigade received “a large number of calls” about the incident.
According to the Guardian, the loud bang was caused by supersonic Typhoon fighter jets scrambled in response to plane that was not answering air traffic control.

Local police and firefighters tried to reassure concerned residents via Twitter.

Others speculated on the cause of the incident.

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